18620170180

素因数分解:

$2^2\times 5^1\times {\mathrm{931008509}}^1$

素因数の和:931008518

約数の個数: 12

約数和(自身を含む): 39102357420

約数和(自身を除く): 20482187240

約数列:

[1, 2, 4, 5, 10, 20, 931008509, 1862017018, 3724034036, 4655042545, 9310085090, 18620170180]

約数ペア:

[(1, 18620170180), (2, 9310085090), (4, 4655042545), (5, 3724034036), (10, 1862017018), (20, 931008509)]