18845060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72481}}^1$

素因数の和:72503

約数の個数: 24

約数和(自身を含む): 42619416

約数和(自身を除く): 23774356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72481, 144962, 289924, 362405, 724810, 942253, 1449620, 1884506, 3769012, 4711265, 9422530, 18845060]

約数ペア:

[(1, 18845060), (2, 9422530), (4, 4711265), (5, 3769012), (10, 1884506), (13, 1449620), (20, 942253), (26, 724810), (52, 362405), (65, 289924), (130, 144962), (260, 72481)]