15992780

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1571}}^1$

素因数の和:2089

約数の個数: 24

約数和(自身を含む): 33672240

約数和(自身を除く): 17679460

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1571, 2036, 2545, 3142, 5090, 6284, 7855, 10180, 15710, 31420, 799639, 1599278, 3198556, 3998195, 7996390, 15992780]

約数ペア:

[(1, 15992780), (2, 7996390), (4, 3998195), (5, 3198556), (10, 1599278), (20, 799639), (509, 31420), (1018, 15710), (1571, 10180), (2036, 7855), (2545, 6284), (3142, 5090)]