81124360

素因数分解:

$2^3\times 5^1\times {\mathrm{2028109}}^1$

素因数の和:2028120

約数の個数: 16

約数和(自身を含む): 182529900

約数和(自身を除く): 101405540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2028109, 4056218, 8112436, 10140545, 16224872, 20281090, 40562180, 81124360]

約数ペア:

[(1, 81124360), (2, 40562180), (4, 20281090), (5, 16224872), (8, 10140545), (10, 8112436), (20, 4056218), (40, 2028109)]