12902000

素因数分解:

$2^4\times 5^3\times {\mathrm{6451}}^1$

素因数の和:6474

約数の個数: 40

約数和(自身を含む): 31201872

約数和(自身を除く): 18299872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 6451, 12902, 25804, 32255, 51608, 64510, 103216, 129020, 161275, 258040, 322550, 516080, 645100, 806375, 1290200, 1612750, 2580400, 3225500, 6451000, 12902000]

約数ペア:

[(1, 12902000), (2, 6451000), (4, 3225500), (5, 2580400), (8, 1612750), (10, 1290200), (16, 806375), (20, 645100), (25, 516080), (40, 322550), (50, 258040), (80, 161275), (100, 129020), (125, 103216), (200, 64510), (250, 51608), (400, 32255), (500, 25804), (1000, 12902), (2000, 6451)]