20216306864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{11471}}^1$

素因数の和:11758

約数の個数: 80

約数和(自身を含む): 43515131520

約数和(自身を除く): 23298824656

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 229, 296, 458, 481, 592, 916, 962, 1832, 1924, 2977, 3664, 3848, 5954, 7696, 8473, 11471, 11908, 16946, 22942, 23816, 33892, 45884, 47632, 67784, 91768, 110149, 135568, 149123, 183536, 220298, 298246, 424427, 440596, 596492, 848854, 881192, 1192984, 1697708, 1762384, 2385968, 2626859, 3395416, 5253718, 5517551, 6790832, 10507436, 11035102, 21014872, 22070204, 34149167, 42029744, 44140408, 68298334, 88280816, 97193783, 136596668, 194387566, 273193336, 388775132, 546386672, 777550264, 1263519179, 1555100528, 2527038358, 5054076716, 10108153432, 20216306864]

約数ペア:

[(1, 20216306864), (2, 10108153432), (4, 5054076716), (8, 2527038358), (13, 1555100528), (16, 1263519179), (26, 777550264), (37, 546386672), (52, 388775132), (74, 273193336), (104, 194387566), (148, 136596668), (208, 97193783), (229, 88280816), (296, 68298334), (458, 44140408), (481, 42029744), (592, 34149167), (916, 22070204), (962, 21014872), (1832, 11035102), (1924, 10507436), (2977, 6790832), (3664, 5517551), (3848, 5253718), (5954, 3395416), (7696, 2626859), (8473, 2385968), (11471, 1762384), (11908, 1697708), (16946, 1192984), (22942, 881192), (23816, 848854), (33892, 596492), (45884, 440596), (47632, 424427), (67784, 298246), (91768, 220298), (110149, 183536), (135568, 149123)]