210894020

素因数分解:

$2^2\times 5^1\times {\mathrm{10544701}}^1$

素因数の和:10544710

約数の個数: 12

約数和(自身を含む): 442877484

約数和(自身を除く): 231983464

約数列:

[1, 2, 4, 5, 10, 20, 10544701, 21089402, 42178804, 52723505, 105447010, 210894020]

約数ペア:

[(1, 210894020), (2, 105447010), (4, 52723505), (5, 42178804), (10, 21089402), (20, 10544701)]