28157500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{1609}}^1$

素因数の和:1640

約数の個数: 60

約数和(自身を含む): 70414960

約数和(自身を除く): 42257460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1250, 1609, 1750, 2500, 3218, 3500, 4375, 6436, 8045, 8750, 11263, 16090, 17500, 22526, 32180, 40225, 45052, 56315, 80450, 112630, 160900, 201125, 225260, 281575, 402250, 563150, 804500, 1005625, 1126300, 1407875, 2011250, 2815750, 4022500, 5631500, 7039375, 14078750, 28157500]

約数ペア:

[(1, 28157500), (2, 14078750), (4, 7039375), (5, 5631500), (7, 4022500), (10, 2815750), (14, 2011250), (20, 1407875), (25, 1126300), (28, 1005625), (35, 804500), (50, 563150), (70, 402250), (100, 281575), (125, 225260), (140, 201125), (175, 160900), (250, 112630), (350, 80450), (500, 56315), (625, 45052), (700, 40225), (875, 32180), (1250, 22526), (1609, 17500), (1750, 16090), (2500, 11263), (3218, 8750), (3500, 8045), (4375, 6436)]