51160880

素因数分解:

$2^4\times 5^1\times {\mathrm{639511}}^1$

素因数の和:639524

約数の個数: 20

約数和(自身を含む): 118949232

約数和(自身を除く): 67788352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639511, 1279022, 2558044, 3197555, 5116088, 6395110, 10232176, 12790220, 25580440, 51160880]

約数ペア:

[(1, 51160880), (2, 25580440), (4, 12790220), (5, 10232176), (8, 6395110), (10, 5116088), (16, 3197555), (20, 2558044), (40, 1279022), (80, 639511)]