81308440

素因数分解:

$2^3\times 5^1\times {\mathrm{2032711}}^1$

素因数の和:2032722

約数の個数: 16

約数和(自身を含む): 182944080

約数和(自身を除く): 101635640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2032711, 4065422, 8130844, 10163555, 16261688, 20327110, 40654220, 81308440]

約数ペア:

[(1, 81308440), (2, 40654220), (4, 20327110), (5, 16261688), (8, 10163555), (10, 8130844), (20, 4065422), (40, 2032711)]