20080040

素因数分解:

$2^3\times 5^1\times {\mathrm{502001}}^1$

素因数の和:502012

約数の個数: 16

約数和(自身を含む): 45180180

約数和(自身を除く): 25100140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502001, 1004002, 2008004, 2510005, 4016008, 5020010, 10040020, 20080040]

約数ペア:

[(1, 20080040), (2, 10040020), (4, 5020010), (5, 4016008), (8, 2510005), (10, 2008004), (20, 1004002), (40, 502001)]