200080040

素因数分解:

$2^3\times 5^1\times {\mathrm{5002001}}^1$

素因数の和:5002012

約数の個数: 16

約数和(自身を含む): 450180180

約数和(自身を除く): 250100140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5002001, 10004002, 20008004, 25010005, 40016008, 50020010, 100040020, 200080040]

約数ペア:

[(1, 200080040), (2, 100040020), (4, 50020010), (5, 40016008), (8, 25010005), (10, 20008004), (20, 10004002), (40, 5002001)]