56909840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54721}}^1$

素因数の和:54747

約数の個数: 40

約数和(自身を含む): 142496088

約数和(自身を除く): 85586248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 54721, 109442, 218884, 273605, 437768, 547210, 711373, 875536, 1094420, 1422746, 2188840, 2845492, 3556865, 4377680, 5690984, 7113730, 11381968, 14227460, 28454920, 56909840]

約数ペア:

[(1, 56909840), (2, 28454920), (4, 14227460), (5, 11381968), (8, 7113730), (10, 5690984), (13, 4377680), (16, 3556865), (20, 2845492), (26, 2188840), (40, 1422746), (52, 1094420), (65, 875536), (80, 711373), (104, 547210), (130, 437768), (208, 273605), (260, 218884), (520, 109442), (1040, 54721)]