51154640

素因数分解:

$2^4\times 5^1\times {\mathrm{639433}}^1$

素因数の和:639446

約数の個数: 20

約数和(自身を含む): 118934724

約数和(自身を除く): 67780084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639433, 1278866, 2557732, 3197165, 5115464, 6394330, 10230928, 12788660, 25577320, 51154640]

約数ペア:

[(1, 51154640), (2, 25577320), (4, 12788660), (5, 10230928), (8, 6394330), (10, 5115464), (16, 3197165), (20, 2557732), (40, 1278866), (80, 639433)]