80513680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77417}}^1$

素因数の和:77443

約数の個数: 40

約数和(自身を含む): 201596472

約数和(自身を除く): 121082792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77417, 154834, 309668, 387085, 619336, 774170, 1006421, 1238672, 1548340, 2012842, 3096680, 4025684, 5032105, 6193360, 8051368, 10064210, 16102736, 20128420, 40256840, 80513680]

約数ペア:

[(1, 80513680), (2, 40256840), (4, 20128420), (5, 16102736), (8, 10064210), (10, 8051368), (13, 6193360), (16, 5032105), (20, 4025684), (26, 3096680), (40, 2012842), (52, 1548340), (65, 1238672), (80, 1006421), (104, 774170), (130, 619336), (208, 387085), (260, 309668), (520, 154834), (1040, 77417)]