2018090180

素因数分解:

$2^2\times 5^1\times {\mathrm{100904509}}^1$

素因数の和:100904518

約数の個数: 12

約数和(自身を含む): 4237989420

約数和(自身を除く): 2219899240

約数列:

[1, 2, 4, 5, 10, 20, 100904509, 201809018, 403618036, 504522545, 1009045090, 2018090180]

約数ペア:

[(1, 2018090180), (2, 1009045090), (4, 504522545), (5, 403618036), (10, 201809018), (20, 100904509)]