1,0 [1 = empty product]
2,0 [2 = (2-1)*2^1 and a(2-1) = 0]
3,30
4,0 [4 = (2-1)*2^2 and a(2-1) = 0]
5,10
6,0 [6 = (3-1)*3^1 and a(3-1) = 0]
7,2
8,0 [8 = (2-1)*2^3 and a(2-1) = 0]
9,10
10,110
11,22
12,0 [12 = (2-1)*2^1 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
13,2
14,22
15,6
16,0 [16 = (2-1)*2^4 and a(2-1) = 0]
17,2
18,0 [18 = (3-1)*3^2 and a(3-1) = 0]
19,2
20,0 [20 = (5-1)*5^1 and a(5-1) = 0]
21,54
22,22
23,10
24,0 [24 = (2-1)*2^2 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
25,2
26,22
27,22
28,212983792
29,6
30,>5*10^9 or 0
31,2
32,0 [32 = (2-1)*2^5 and a(2-1) = 0]
33,18
34,2
35,10
36,0 [36 = (3-1)*3^1 * (3-1)*3^1 and a(3-1) = 0]
37,2
38,2
39,6
40,0 [40 = (2-1)*2^1 * (5-1)*5^1 and a(2-1) = a(5-1) = 0]
41,6
42,0 [42 = (7-1)*7^1 and a(7-1) = 0]
43,2
44,22
45,2
46,46
47,2
48,0 [48 = (2-1)*2^3 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
49,2
50,22
51,10
52,146068
53,6
54,0 [54 = (3-1)*3^3 and a(3-1) = 0]
55,10
56,212983792
57,2
58,58
59,2
60,>5*10^9 or 0 [a(60) >= a(30) or a(60) = 0, since a(60/30) = 0]
61,2
62,2
63,18
64,0 [64 = (2-1)*2^6 and a(2-1) = 0]
65,6
66,>2*10^7 or 0
67,2
68,10
69,6
70,4970
71,2
72,0 [12 = (2-1)*2^1 * (3-1)*3^1 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
73,2
74,10
75,6
76,2
77,2
78,78
79,2
80,0 [80 = (2-1)*2^2 * (5-1)*5^1 and a(2-1) = a(5-1) = 0]
81,30
82,82
83,10
84,0 [84 = (2-1)*2^1 * (7-1)*7^1 and a(2-1) = a(7-1) = 0]
85,2
86,6
87,2
88,>2*10^7 or 0
89,6
90,106
91,2
92,46
93,2
94,2
95,10
96,0 [96 = (2-1)*2^4 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
97,2
98,22
99,6
100,0 [100 = (5-1)*5^2 and a(5-1) = 0]
101,2
102,102
103,2
104,146068
105,18
106,106
107,2
108,0 [108 = (2-1)*2^1 * (3-1)*3^3 and a(2-1) = a(3-1) = 0]
109,2
110,10
111,6
112,>212983792 or 0 [a(112) >= a(28) or a(112) = 0, since a(112/28) = 0, but 112*a(28) is a totient]
113,6
114,46
115,2
116,58
117,2
118,2
119,6
120,0 [120 = (3-1)*3^1 * (5-1)*5^1 and a(3-1) = a(5-1) = 0]
121,2
122,2
123,2
124,2
125,10
126,>2*10^7 and <=528679987250814
127,2
128,0 [128 = (2-1)*2^7 and a(2-1) = 0]
129,2
130,17030
131,10
132,>2*10^7 or 0
133,2
134,6
135,10
136,>2*10^7 or 0
137,2
138,138
139,2
140,>2*10^7 or 0
141,6
142,2
143,2
144,0 [144 = (2-1)*2^2 * (3-1)*3^1 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
145,2
146,10
147,22
148,>2*10^7 or 0
149,2
150,>2*10^7 or 0
151,2
152,2
153,18
154,2
155,10
156,0 [156 = (13-1)*13^1 and a(13-1) = 0]
157,2
158,6
159,2
160,0 [160 = (2-1)*2^3 * (5-1)*5^1 and a(2-1) = a(5-1) = 0]
161,2
162,0 [162 = (3-1)*3^4 and a(3-1) = 0]
163,2
164,82
165,10
166,166
167,2
168,0 [168 = (2-1)*2^2 * (7-1)*7^1 and a(2-1) = a(7-1) = 0]
169,2
170,2
171,6
172,172
173,10
174,78
175,2
176,>2*10^7 or 0
177,2
178,178
179,6
180,>5*10^9 or 0 [a(180) >= a(30) or a(180) = 0, since a(180/30) = 0]
181,2
182,2
183,6
184,46
185,2
186,18
187,2
188,2
189,6
190,190
191,6
192,0 [192 = (2-1)*2^5 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
193,2
194,6
195,2
196,7606564
197,2
198,>2*10^7 and <=310511361798
199,2
200,0 [200 = (2-1)*2^1 * (5-1)*5^2 and a(2-1) = a(5-1) = 0]
201,2
202,2
203,2
204,>2*10^7 or 0
205,2
206,2
207,2
208,146068
209,6
210,>2*10^7 or 0
211,2
212,106
213,2
214,2
215,10
216,0 [216 = (2-1)*2^2 * (3-1)*3^3 and a(2-1) = a(3-1) = 0]
217,2
218,2
219,6
220,>2*10^7 or 0
221,10
222,>2*10^7 or 0
223,2
224,>212983792 or 0 [a(224) >= a(28) or a(224) = 0, since a(224/28) = 0, but 224*a(28) is a totient]
225,2
226,226
227,2
228,>2*10^7 or 0
229,2
230,46
231,6
232,>2*10^7 or 0
233,10
234,58
235,2
236,2
237,2
238,238
239,6
240,0 [240 = (2-1)*2^1 * (3-1)*3^1 * (5-1)*5^1 and a(2-1) = a(3-1) = a(5-1) = 0]
241,2
242,2
243,10
244,2
245,10
246,58
247,2
248,2
249,6
250,62750
251,6
252,0 [252 = (3-1)*3^1 * (7-1)*7^1 and a(3-1) = a(7-1) = 0]
253,6
254,6
255,2
256,0 [256 = (2-1)*2^8 and a(2-1) = 0]
257,2
258,2
259,2
260,>2*10^7 or 0
261,10
262,262
263,2
264,>2*10^7 or 0
265,2
266,2
267,2
268,72092
269,2
270,>2*10^7 or 0
271,2
272,0 [272 = (17-1)*17^1 and a(17-1) = 0]
273,6
274,2
275,2
276,>2*10^7 or 0
277,2
278,10
279,2
280,>2*10^7 or 0
281,6
282,282
283,2
284,10
285,6
286,2
287,2
288,0 [288 = (2-1)*2^3 * (3-1)*3^1 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
289,2
290,46
291,2
292,>2*10^7 or 0
293,10
294,0 [294 = (7-1)*7^2 and a(7-1) = 0]
295,2
296,>2*10^7 or 0
297,2
298,2
299,6
300,>2*10^7 or 0
301,2
302,2
303,6
304,2
305,2
306,>2*10^7 or 0
307,2
308,82
309,6
310,310
311,2
312,0 [312 = (2-1)*2^1 * (13-1)*13^1 and a(2-1) = a(13-1) = 0]
313,2
314,2
315,6
316,316
317,2
318,30
319,2
320,0 [320 = (2-1)*2^4 * (5-1)*5^1 and a(2-1) = a(5-1) = 0]
321,6
322,2
323,6
324,0 [324 = (2-1)*2^1 * (3-1)*3^4 and a(2-1) = a(3-1) = 0]
325,2
326,6
327,2
328,82
329,6
330,>2*10^7 or 0
331,2
332,166
333,2
334,2
335,2
336,0 [336 = (2-1)*2^3 * (7-1)*7^1 and a(2-1) = a(7-1) = 0]
337,2
338,10
339,2
340,2
341,6
342,0 [342 = (19-1)*19^1 and a(19-1) = 0]
343,2
344,172
345,6
346,346
347,2
348,>2*10^7 or 0
349,2
350,10
351,2
352,>2*10^7 or 0
353,2
354,46
355,2
356,178
357,2
358,358
359,6
360,0 [360 = (3-1)*3^2 * (5-1)*5^1 and a(3-1) = a(5-1) = 0]
361,2
362,2
363,18
364,2
365,2
366,366
367,2
368,46
369,6
370,2
371,6
372,>2*10^7 or 0
373,2
374,2
375,10
376,2
377,2
378,>2*10^7 or 0
379,2
380,190
381,2
382,382
383,2
384,0 [384 = (2-1)*2^6 * (3-1)*3^1 and a(2-1) = a(3-1) = 0]
385,2
386,6
387,2
388,388
389,2
390,78
391,2
392,7606564
393,6
394,2
395,2
396,>2*10^7 or 0
397,2
398,10
399,2
400,0 [400 = (5-1)*5^1 * (5-1)*5^1 and a(5-1) = 0]
401,2
402,2
403,2
404,10
405,6
406,46
407,2
408,>2*10^7 or 0
409,2
410,10
411,18
412,2
413,6
414,46
415,2
416,146068
417,2
418,418
419,6
420,>2*10^7 or 0
421,2
422,2
423,2
424,106
425,2
426,22
427,2
428,22
429,6
430,185330
431,6
432,0 [432 = (2-1)*2^3 * (3-1)*3^3 and a(2-1) = a(3-1) = 0]
433,2
434,2
435,2
436,2
437,2
438,>2*10^7 and <=84411798
439,2
440,>2*10^7 or 0
441,10
442,442
443,10
444,>2*10^7 or 0
445,2
446,2
447,2
448,>212983792 or 0 [a(448) >= a(28) or a(448) = 0, since a(448/28) = 0, but 448*a(28) is a totient]
449,2
450,2010
451,2
452,226
453,10
454,2
455,10
456,>2*10^7 or 0
457,2
458,2
459,6
460,>2*10^7 or 0
461,2
462,>2*10^7 or 0
463,2
464,>2*10^7 or 0
465,18
466,217622
467,2
468,>2*10^7 or 0
469,2
470,58
471,2
472,2
473,6
474,2
475,2
476,238
477,2
478,478
479,2
480,0 [480 = (2-1)*2^2 * (3-1)*3^1 * (5-1)*5^1 and a(2-1) = a(3-1) = a(5-1) = 0]
481,2
482,2
483,6
484,2
485,6
486,0 [486 = (3-1)*3^5 and a(3-1) = 0]
487,2
488,22
489,2
490,240590
491,6
492,>2*10^7 or 0
493,2
494,2
495,18
496,2
497,2
498,498
499,2
500,>2*10^7 or 0
501,2
502,502
503,2
504,0 [504 = (2-1)*2^1 = (3-1)*3^1 * (7-1)*7^1 and a(2-1) = a(3-1) = a(7-1) = 0]
505,2
506,22
507,2
508,508
509,6
510,250
511,2
512,0 [512 = (2-1)*2^9 and a(2-1) = 0]