20403870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{680129}}^1$

素因数の和:680139

約数の個数: 16

約数和(自身を含む): 48969360

約数和(自身を除く): 28565490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 680129, 1360258, 2040387, 3400645, 4080774, 6801290, 10201935, 20403870]

約数ペア:

[(1, 20403870), (2, 10201935), (3, 6801290), (5, 4080774), (6, 3400645), (10, 2040387), (15, 1360258), (30, 680129)]