157020020

素因数分解:

$2^2\times 5^1\times {\mathrm{7851001}}^1$

素因数の和:7851010

約数の個数: 12

約数和(自身を含む): 329742084

約数和(自身を除く): 172722064

約数列:

[1, 2, 4, 5, 10, 20, 7851001, 15702002, 31404004, 39255005, 78510010, 157020020]

約数ペア:

[(1, 157020020), (2, 78510010), (4, 39255005), (5, 31404004), (10, 15702002), (20, 7851001)]