12662800

素因数分解:

$2^4\times 5^2\times {\mathrm{31657}}^1$

素因数の和:31675

約数の個数: 30

約数和(自身を含む): 30423338

約数和(自身を除く): 17760538

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31657, 63314, 126628, 158285, 253256, 316570, 506512, 633140, 791425, 1266280, 1582850, 2532560, 3165700, 6331400, 12662800]

約数ペア:

[(1, 12662800), (2, 6331400), (4, 3165700), (5, 2532560), (8, 1582850), (10, 1266280), (16, 791425), (20, 633140), (25, 506512), (40, 316570), (50, 253256), (80, 158285), (100, 126628), (200, 63314), (400, 31657)]