20087240

素因数分解:

$2^3\times 5^1\times {\mathrm{502181}}^1$

素因数の和:502192

約数の個数: 16

約数和(自身を含む): 45196380

約数和(自身を除く): 25109140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502181, 1004362, 2008724, 2510905, 4017448, 5021810, 10043620, 20087240]

約数ペア:

[(1, 20087240), (2, 10043620), (4, 5021810), (5, 4017448), (8, 2510905), (10, 2008724), (20, 1004362), (40, 502181)]