28182800

素因数分解:

$2^4\times 5^2\times {\mathrm{70457}}^1$

素因数の和:70475

約数の個数: 30

約数和(自身を含む): 67710138

約数和(自身を除く): 39527338

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70457, 140914, 281828, 352285, 563656, 704570, 1127312, 1409140, 1761425, 2818280, 3522850, 5636560, 7045700, 14091400, 28182800]

約数ペア:

[(1, 28182800), (2, 14091400), (4, 7045700), (5, 5636560), (8, 3522850), (10, 2818280), (16, 1761425), (20, 1409140), (25, 1127312), (40, 704570), (50, 563656), (80, 352285), (100, 281828), (200, 140914), (400, 70457)]