12986800

素因数分解:

$2^4\times 5^2\times {\mathrm{32467}}^1$

素因数の和:32485

約数の個数: 30

約数和(自身を含む): 31201748

約数和(自身を除く): 18214948

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32467, 64934, 129868, 162335, 259736, 324670, 519472, 649340, 811675, 1298680, 1623350, 2597360, 3246700, 6493400, 12986800]

約数ペア:

[(1, 12986800), (2, 6493400), (4, 3246700), (5, 2597360), (8, 1623350), (10, 1298680), (16, 811675), (20, 649340), (25, 519472), (40, 324670), (50, 259736), (80, 162335), (100, 129868), (200, 64934), (400, 32467)]