18015820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3769}}^1$

素因数の和:4017

約数の個数: 24

約数和(自身を含む): 38001600

約数和(自身を除く): 19985780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 3769, 4780, 7538, 15076, 18845, 37690, 75380, 900791, 1801582, 3603164, 4503955, 9007910, 18015820]

約数ペア:

[(1, 18015820), (2, 9007910), (4, 4503955), (5, 3603164), (10, 1801582), (20, 900791), (239, 75380), (478, 37690), (956, 18845), (1195, 15076), (2390, 7538), (3769, 4780)]