18895640

素因数分解:

$2^3\times 5^1\times {\mathrm{472391}}^1$

素因数の和:472402

約数の個数: 16

約数和(自身を含む): 42515280

約数和(自身を除く): 23619640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472391, 944782, 1889564, 2361955, 3779128, 4723910, 9447820, 18895640]

約数ペア:

[(1, 18895640), (2, 9447820), (4, 4723910), (5, 3779128), (8, 2361955), (10, 1889564), (20, 944782), (40, 472391)]