2189780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1063}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 4647552

約数和(自身を除く): 2457772

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 1063, 2060, 2126, 4252, 5315, 10630, 21260, 109489, 218978, 437956, 547445, 1094890, 2189780]

約数ペア:

[(1, 2189780), (2, 1094890), (4, 547445), (5, 437956), (10, 218978), (20, 109489), (103, 21260), (206, 10630), (412, 5315), (515, 4252), (1030, 2126), (1063, 2060)]