8130820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3947}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 17244864

約数和(自身を除く): 9114044

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 3947, 7894, 15788, 19735, 39470, 78940, 406541, 813082, 1626164, 2032705, 4065410, 8130820]

約数ペア:

[(1, 8130820), (2, 4065410), (4, 2032705), (5, 1626164), (10, 813082), (20, 406541), (103, 78940), (206, 39470), (412, 19735), (515, 15788), (1030, 7894), (2060, 3947)]