389631280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{82549}}^1$

素因数の和:82621

約数の個数: 40

約数和(自身を含む): 921258000

約数和(自身を除く): 531626720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 82549, 165098, 330196, 412745, 660392, 825490, 1320784, 1650980, 3301960, 4870391, 6603920, 9740782, 19481564, 24351955, 38963128, 48703910, 77926256, 97407820, 194815640, 389631280]

約数ペア:

[(1, 389631280), (2, 194815640), (4, 97407820), (5, 77926256), (8, 48703910), (10, 38963128), (16, 24351955), (20, 19481564), (40, 9740782), (59, 6603920), (80, 4870391), (118, 3301960), (236, 1650980), (295, 1320784), (472, 825490), (590, 660392), (944, 412745), (1180, 330196), (2360, 165098), (4720, 82549)]