20429800

素因数分解:

$2^3\times 5^2\times {\mathrm{102149}}^1$

素因数の和:102165

約数の個数: 24

約数和(自身を含む): 47499750

約数和(自身を除く): 27069950

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 102149, 204298, 408596, 510745, 817192, 1021490, 2042980, 2553725, 4085960, 5107450, 10214900, 20429800]

約数ペア:

[(1, 20429800), (2, 10214900), (4, 5107450), (5, 4085960), (8, 2553725), (10, 2042980), (20, 1021490), (25, 817192), (40, 510745), (50, 408596), (100, 204298), (200, 102149)]