20100481780

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2238361}}^1$

素因数の和:2238819

約数の個数: 24

約数和(自身を含む): 42305041800

約数和(自身を除く): 22204560020

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 2238361, 4476722, 8953444, 11191805, 22383610, 44767220, 1005024089, 2010048178, 4020096356, 5025120445, 10050240890, 20100481780]

約数ペア:

[(1, 20100481780), (2, 10050240890), (4, 5025120445), (5, 4020096356), (10, 2010048178), (20, 1005024089), (449, 44767220), (898, 22383610), (1796, 11191805), (2245, 8953444), (4490, 4476722), (8980, 2238361)]