31158920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59921}}^1$

素因数の和:59945

約数の個数: 32

約数和(自身を含む): 75501720

約数和(自身を除く): 44342800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 59921, 119842, 239684, 299605, 479368, 599210, 778973, 1198420, 1557946, 2396840, 3115892, 3894865, 6231784, 7789730, 15579460, 31158920]

約数ペア:

[(1, 31158920), (2, 15579460), (4, 7789730), (5, 6231784), (8, 3894865), (10, 3115892), (13, 2396840), (20, 1557946), (26, 1198420), (40, 778973), (52, 599210), (65, 479368), (104, 299605), (130, 239684), (260, 119842), (520, 59921)]