99640040

素因数分解:

$2^3\times 5^1\times {\mathrm{2491001}}^1$

素因数の和:2491012

約数の個数: 16

約数和(自身を含む): 224190180

約数和(自身を除く): 124550140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2491001, 4982002, 9964004, 12455005, 19928008, 24910010, 49820020, 99640040]

約数ペア:

[(1, 99640040), (2, 49820020), (4, 24910010), (5, 19928008), (8, 12455005), (10, 9964004), (20, 4982002), (40, 2491001)]