202940020

素因数分解:

$2^2\times 5^1\times {\mathrm{10147001}}^1$

素因数の和:10147010

約数の個数: 12

約数和(自身を含む): 426174084

約数和(自身を除く): 223234064

約数列:

[1, 2, 4, 5, 10, 20, 10147001, 20294002, 40588004, 50735005, 101470010, 202940020]

約数ペア:

[(1, 202940020), (2, 101470010), (4, 50735005), (5, 40588004), (10, 20294002), (20, 10147001)]