20249500

素因数分解:

$2^2\times 5^3\times {\mathrm{40499}}^1$

素因数の和:40518

約数の個数: 24

約数和(自身を含む): 44226000

約数和(自身を除く): 23976500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 40499, 80998, 161996, 202495, 404990, 809980, 1012475, 2024950, 4049900, 5062375, 10124750, 20249500]

約数ペア:

[(1, 20249500), (2, 10124750), (4, 5062375), (5, 4049900), (10, 2024950), (20, 1012475), (25, 809980), (50, 404990), (100, 202495), (125, 161996), (250, 80998), (500, 40499)]