8080040

素因数分解:

$2^3\times 5^1\times {\mathrm{202001}}^1$

素因数の和:202012

約数の個数: 16

約数和(自身を含む): 18180180

約数和(自身を除く): 10100140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 202001, 404002, 808004, 1010005, 1616008, 2020010, 4040020, 8080040]

約数ペア:

[(1, 8080040), (2, 4040020), (4, 2020010), (5, 1616008), (8, 1010005), (10, 808004), (20, 404002), (40, 202001)]