20551000

素因数分解:

$2^3\times 5^3\times {\mathrm{20551}}^1$

素因数の和:20572

約数の個数: 32

約数和(自身を含む): 48091680

約数和(自身を除く): 27540680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20551, 41102, 82204, 102755, 164408, 205510, 411020, 513775, 822040, 1027550, 2055100, 2568875, 4110200, 5137750, 10275500, 20551000]

約数ペア:

[(1, 20551000), (2, 10275500), (4, 5137750), (5, 4110200), (8, 2568875), (10, 2055100), (20, 1027550), (25, 822040), (40, 513775), (50, 411020), (100, 205510), (125, 164408), (200, 102755), (250, 82204), (500, 41102), (1000, 20551)]