157639480

素因数分解:

$2^3\times 5^1\times {\mathrm{3940987}}^1$

素因数の和:3940998

約数の個数: 16

約数和(自身を含む): 354688920

約数和(自身を除く): 197049440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3940987, 7881974, 15763948, 19704935, 31527896, 39409870, 78819740, 157639480]

約数ペア:

[(1, 157639480), (2, 78819740), (4, 39409870), (5, 31527896), (8, 19704935), (10, 15763948), (20, 7881974), (40, 3940987)]