51640180

素因数分解:

$2^2\times 5^1\times {\mathrm{2582009}}^1$

素因数の和:2582018

約数の個数: 12

約数和(自身を含む): 108444420

約数和(自身を除く): 56804240

約数列:

[1, 2, 4, 5, 10, 20, 2582009, 5164018, 10328036, 12910045, 25820090, 51640180]

約数ペア:

[(1, 51640180), (2, 25820090), (4, 12910045), (5, 10328036), (10, 5164018), (20, 2582009)]