51907280

素因数分解:

$2^4\times 5^1\times {\mathrm{648841}}^1$

素因数の和:648854

約数の個数: 20

約数和(自身を含む): 120684612

約数和(自身を除く): 68777332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648841, 1297682, 2595364, 3244205, 5190728, 6488410, 10381456, 12976820, 25953640, 51907280]

約数ペア:

[(1, 51907280), (2, 25953640), (4, 12976820), (5, 10381456), (8, 6488410), (10, 5190728), (16, 3244205), (20, 2595364), (40, 1297682), (80, 648841)]