85208240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81931}}^1$

素因数の和:81957

約数の個数: 40

約数和(自身を含む): 213350928

約数和(自身を除く): 128142688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 81931, 163862, 327724, 409655, 655448, 819310, 1065103, 1310896, 1638620, 2130206, 3277240, 4260412, 5325515, 6554480, 8520824, 10651030, 17041648, 21302060, 42604120, 85208240]

約数ペア:

[(1, 85208240), (2, 42604120), (4, 21302060), (5, 17041648), (8, 10651030), (10, 8520824), (13, 6554480), (16, 5325515), (20, 4260412), (26, 3277240), (40, 2130206), (52, 1638620), (65, 1310896), (80, 1065103), (104, 819310), (130, 655448), (208, 409655), (260, 327724), (520, 163862), (1040, 81931)]