1290200

素因数分解:

$2^3\times 5^2\times {\mathrm{6451}}^1$

素因数の和:6467

約数の個数: 24

約数和(自身を含む): 3000180

約数和(自身を除く): 1709980

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 6451, 12902, 25804, 32255, 51608, 64510, 129020, 161275, 258040, 322550, 645100, 1290200]

約数ペア:

[(1, 1290200), (2, 645100), (4, 322550), (5, 258040), (8, 161275), (10, 129020), (20, 64510), (25, 51608), (40, 32255), (50, 25804), (100, 12902), (200, 6451)]