20447980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146057}}^1$

素因数の和:146073

約数の個数: 24

約数和(自身を含む): 49075488

約数和(自身を除く): 28627508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146057, 292114, 584228, 730285, 1022399, 1460570, 2044798, 2921140, 4089596, 5111995, 10223990, 20447980]

約数ペア:

[(1, 20447980), (2, 10223990), (4, 5111995), (5, 4089596), (7, 2921140), (10, 2044798), (14, 1460570), (20, 1022399), (28, 730285), (35, 584228), (70, 292114), (140, 146057)]