20182105

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 4614695

約数列:

[1, 5, 71, 139, 355, 409, 695, 2045, 9869, 29039, 49345, 56851, 145195, 284255, 4036421, 20182105]

約数ペア:

[(1, 20182105), (5, 4036421), (71, 284255), (139, 145195), (355, 56851), (409, 49345), (695, 29039), (2045, 9869)]