18835640

素因数分解:

$2^3\times 5^1\times {\mathrm{470891}}^1$

素因数の和:470902

約数の個数: 16

約数和(自身を含む): 42380280

約数和(自身を除く): 23544640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 470891, 941782, 1883564, 2354455, 3767128, 4708910, 9417820, 18835640]

約数ペア:

[(1, 18835640), (2, 9417820), (4, 4708910), (5, 3767128), (8, 2354455), (10, 1883564), (20, 941782), (40, 470891)]