21572680

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1423}}^1$

素因数の和:1813

約数の個数: 32

約数和(自身を含む): 48700800

約数和(自身を除く): 27128120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1423, 1516, 1895, 2846, 3032, 3790, 5692, 7115, 7580, 11384, 14230, 15160, 28460, 56920, 539317, 1078634, 2157268, 2696585, 4314536, 5393170, 10786340, 21572680]

約数ペア:

[(1, 21572680), (2, 10786340), (4, 5393170), (5, 4314536), (8, 2696585), (10, 2157268), (20, 1078634), (40, 539317), (379, 56920), (758, 28460), (1423, 15160), (1516, 14230), (1895, 11384), (2846, 7580), (3032, 7115), (3790, 5692)]