157656880

素因数分解:

$2^4\times 5^1\times {\mathrm{1970711}}^1$

素因数の和:1970724

約数の個数: 20

約数和(自身を含む): 366552432

約数和(自身を除く): 208895552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1970711, 3941422, 7882844, 9853555, 15765688, 19707110, 31531376, 39414220, 78828440, 157656880]

約数ペア:

[(1, 157656880), (2, 78828440), (4, 39414220), (5, 31531376), (8, 19707110), (10, 15765688), (16, 9853555), (20, 7882844), (40, 3941422), (80, 1970711)]