254403740

素因数分解:

$2^2\times 5^1\times {\mathrm{12720187}}^1$

素因数の和:12720196

約数の個数: 12

約数和(自身を含む): 534247896

約数和(自身を除く): 279844156

約数列:

[1, 2, 4, 5, 10, 20, 12720187, 25440374, 50880748, 63600935, 127201870, 254403740]

約数ペア:

[(1, 254403740), (2, 127201870), (4, 63600935), (5, 50880748), (10, 25440374), (20, 12720187)]