20082980

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4759}}^1$

素因数の和:4979

約数の個数: 24

約数和(自身を含む): 42383040

約数和(自身を除く): 22300060

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4759, 9518, 19036, 23795, 47590, 95180, 1004149, 2008298, 4016596, 5020745, 10041490, 20082980]

約数ペア:

[(1, 20082980), (2, 10041490), (4, 5020745), (5, 4016596), (10, 2008298), (20, 1004149), (211, 95180), (422, 47590), (844, 23795), (1055, 19036), (2110, 9518), (4220, 4759)]