51462800

素因数分解:

$2^4\times 5^2\times {\mathrm{128657}}^1$

素因数の和:128675

約数の個数: 30

約数和(自身を含む): 123640338

約数和(自身を除く): 72177538

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128657, 257314, 514628, 643285, 1029256, 1286570, 2058512, 2573140, 3216425, 5146280, 6432850, 10292560, 12865700, 25731400, 51462800]

約数ペア:

[(1, 51462800), (2, 25731400), (4, 12865700), (5, 10292560), (8, 6432850), (10, 5146280), (16, 3216425), (20, 2573140), (25, 2058512), (40, 1286570), (50, 1029256), (80, 643285), (100, 514628), (200, 257314), (400, 128657)]