20804500

素因数分解:

$2^2\times 5^3\times {\mathrm{41609}}^1$

素因数の和:41628

約数の個数: 24

約数和(自身を含む): 45438120

約数和(自身を除く): 24633620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 41609, 83218, 166436, 208045, 416090, 832180, 1040225, 2080450, 4160900, 5201125, 10402250, 20804500]

約数ペア:

[(1, 20804500), (2, 10402250), (4, 5201125), (5, 4160900), (10, 2080450), (20, 1040225), (25, 832180), (50, 416090), (100, 208045), (125, 166436), (250, 83218), (500, 41609)]