51144560

素因数分解:

$2^4\times 5^1\times {\mathrm{639307}}^1$

素因数の和:639320

約数の個数: 20

約数和(自身を含む): 118911288

約数和(自身を除く): 67766728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639307, 1278614, 2557228, 3196535, 5114456, 6393070, 10228912, 12786140, 25572280, 51144560]

約数ペア:

[(1, 51144560), (2, 25572280), (4, 12786140), (5, 10228912), (8, 6393070), (10, 5114456), (16, 3196535), (20, 2557228), (40, 1278614), (80, 639307)]