20120457994

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{30803}}^1$

素因数の和:30959

約数の個数: 64

約数和(自身を含む): 38543936256

約数和(自身を除く): 18423478262

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 97, 182, 194, 259, 481, 518, 679, 962, 1261, 1358, 2522, 3367, 3589, 6734, 7178, 8827, 17654, 25123, 30803, 46657, 50246, 61606, 93314, 215621, 326599, 400439, 431242, 653198, 800878, 1139711, 2279422, 2803073, 2987891, 5606146, 5975782, 7977977, 14816243, 15955954, 20915237, 29632486, 38842583, 41830474, 77685166, 103713701, 110551967, 207427402, 221103934, 271898081, 543796162, 773863769, 1437175571, 1547727538, 2874351142, 10060228997, 20120457994]

約数ペア:

[(1, 20120457994), (2, 10060228997), (7, 2874351142), (13, 1547727538), (14, 1437175571), (26, 773863769), (37, 543796162), (74, 271898081), (91, 221103934), (97, 207427402), (182, 110551967), (194, 103713701), (259, 77685166), (481, 41830474), (518, 38842583), (679, 29632486), (962, 20915237), (1261, 15955954), (1358, 14816243), (2522, 7977977), (3367, 5975782), (3589, 5606146), (6734, 2987891), (7178, 2803073), (8827, 2279422), (17654, 1139711), (25123, 800878), (30803, 653198), (46657, 431242), (50246, 400439), (61606, 326599), (93314, 215621)]