8045000

素因数分解:

$2^3\times 5^4\times {\mathrm{1609}}^1$

素因数の和:1635

約数の個数: 40

約数和(自身を含む): 18861150

約数和(自身を除く): 10816150

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 1609, 2500, 3218, 5000, 6436, 8045, 12872, 16090, 32180, 40225, 64360, 80450, 160900, 201125, 321800, 402250, 804500, 1005625, 1609000, 2011250, 4022500, 8045000]

約数ペア:

[(1, 8045000), (2, 4022500), (4, 2011250), (5, 1609000), (8, 1005625), (10, 804500), (20, 402250), (25, 321800), (40, 201125), (50, 160900), (100, 80450), (125, 64360), (200, 40225), (250, 32180), (500, 16090), (625, 12872), (1000, 8045), (1250, 6436), (1609, 5000), (2500, 3218)]