8580820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1049}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 18081000

約数和(自身を除く): 9500180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1049, 1636, 2045, 2098, 4090, 4196, 5245, 8180, 10490, 20980, 429041, 858082, 1716164, 2145205, 4290410, 8580820]

約数ペア:

[(1, 8580820), (2, 4290410), (4, 2145205), (5, 1716164), (10, 858082), (20, 429041), (409, 20980), (818, 10490), (1049, 8180), (1636, 5245), (2045, 4196), (2098, 4090)]