89879920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{86423}}^1$

素因数の和:86449

約数の個数: 40

約数和(自身を含む): 225048096

約数和(自身を除く): 135168176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 86423, 172846, 345692, 432115, 691384, 864230, 1123499, 1382768, 1728460, 2246998, 3456920, 4493996, 5617495, 6913840, 8987992, 11234990, 17975984, 22469980, 44939960, 89879920]

約数ペア:

[(1, 89879920), (2, 44939960), (4, 22469980), (5, 17975984), (8, 11234990), (10, 8987992), (13, 6913840), (16, 5617495), (20, 4493996), (26, 3456920), (40, 2246998), (52, 1728460), (65, 1382768), (80, 1123499), (104, 864230), (130, 691384), (208, 432115), (260, 345692), (520, 172846), (1040, 86423)]