20806040

素因数分解:

$2^3\times 5^1\times {\mathrm{520151}}^1$

素因数の和:520162

約数の個数: 16

約数和(自身を含む): 46813680

約数和(自身を除く): 26007640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 520151, 1040302, 2080604, 2600755, 4161208, 5201510, 10403020, 20806040]

約数ペア:

[(1, 20806040), (2, 10403020), (4, 5201510), (5, 4161208), (8, 2600755), (10, 2080604), (20, 1040302), (40, 520151)]