781763320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{3571}}^1$

素因数の和:4016

約数の個数: 64

約数和(自身を含む): 1899303840

約数和(自身を除く): 1117540520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 421, 520, 842, 1684, 2105, 3368, 3571, 4210, 5473, 7142, 8420, 10946, 14284, 16840, 17855, 21892, 27365, 28568, 35710, 43784, 46423, 54730, 71420, 92846, 109460, 142840, 185692, 218920, 232115, 371384, 464230, 928460, 1503391, 1856920, 3006782, 6013564, 7516955, 12027128, 15033910, 19544083, 30067820, 39088166, 60135640, 78176332, 97720415, 156352664, 195440830, 390881660, 781763320]

約数ペア:

[(1, 781763320), (2, 390881660), (4, 195440830), (5, 156352664), (8, 97720415), (10, 78176332), (13, 60135640), (20, 39088166), (26, 30067820), (40, 19544083), (52, 15033910), (65, 12027128), (104, 7516955), (130, 6013564), (260, 3006782), (421, 1856920), (520, 1503391), (842, 928460), (1684, 464230), (2105, 371384), (3368, 232115), (3571, 218920), (4210, 185692), (5473, 142840), (7142, 109460), (8420, 92846), (10946, 71420), (14284, 54730), (16840, 46423), (17855, 43784), (21892, 35710), (27365, 28568)]