20021360

素因数分解:

$2^4\times 5^1\times {\mathrm{250267}}^1$

素因数の和:250280

約数の個数: 20

約数和(自身を含む): 46549848

約数和(自身を除く): 26528488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250267, 500534, 1001068, 1251335, 2002136, 2502670, 4004272, 5005340, 10010680, 20021360]

約数ペア:

[(1, 20021360), (2, 10010680), (4, 5005340), (5, 4004272), (8, 2502670), (10, 2002136), (16, 1251335), (20, 1001068), (40, 500534), (80, 250267)]