51224560

素因数分解:

$2^4\times 5^1\times {\mathrm{640307}}^1$

素因数の和:640320

約数の個数: 20

約数和(自身を含む): 119097288

約数和(自身を除く): 67872728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 640307, 1280614, 2561228, 3201535, 5122456, 6403070, 10244912, 12806140, 25612280, 51224560]

約数ペア:

[(1, 51224560), (2, 25612280), (4, 12806140), (5, 10244912), (8, 6403070), (10, 5122456), (16, 3201535), (20, 2561228), (40, 1280614), (80, 640307)]