64205440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7717}}^1$

素因数の和:7749

約数の個数: 64

約数和(自身を含む): 165319560

約数和(自身を除く): 101114120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 7717, 8320, 15434, 30868, 38585, 61736, 77170, 100321, 123472, 154340, 200642, 246944, 308680, 401284, 493888, 501605, 617360, 802568, 987776, 1003210, 1234720, 1605136, 2006420, 2469440, 3210272, 4012840, 4938880, 6420544, 8025680, 12841088, 16051360, 32102720, 64205440]

約数ペア:

[(1, 64205440), (2, 32102720), (4, 16051360), (5, 12841088), (8, 8025680), (10, 6420544), (13, 4938880), (16, 4012840), (20, 3210272), (26, 2469440), (32, 2006420), (40, 1605136), (52, 1234720), (64, 1003210), (65, 987776), (80, 802568), (104, 617360), (128, 501605), (130, 493888), (160, 401284), (208, 308680), (260, 246944), (320, 200642), (416, 154340), (520, 123472), (640, 100321), (832, 77170), (1040, 61736), (1664, 38585), (2080, 30868), (4160, 15434), (7717, 8320)]