204428500

素因数分解:

$2^2\times 5^3\times {\mathrm{408857}}^1$

素因数の和:408876

約数の個数: 24

約数和(自身を含む): 446472936

約数和(自身を除く): 242044436

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 408857, 817714, 1635428, 2044285, 4088570, 8177140, 10221425, 20442850, 40885700, 51107125, 102214250, 204428500]

約数ペア:

[(1, 204428500), (2, 102214250), (4, 51107125), (5, 40885700), (10, 20442850), (20, 10221425), (25, 8177140), (50, 4088570), (100, 2044285), (125, 1635428), (250, 817714), (500, 408857)]