20681800

素因数分解:

$2^3\times 5^2\times {\mathrm{103409}}^1$

素因数の和:103425

約数の個数: 24

約数和(自身を含む): 48085650

約数和(自身を除く): 27403850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 103409, 206818, 413636, 517045, 827272, 1034090, 2068180, 2585225, 4136360, 5170450, 10340900, 20681800]

約数ペア:

[(1, 20681800), (2, 10340900), (4, 5170450), (5, 4136360), (8, 2585225), (10, 2068180), (20, 1034090), (25, 827272), (40, 517045), (50, 413636), (100, 206818), (200, 103409)]