51079120

素因数分解:

$2^4\times 5^1\times {\mathrm{638489}}^1$

素因数の和:638502

約数の個数: 20

約数和(自身を含む): 118759140

約数和(自身を除く): 67680020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 638489, 1276978, 2553956, 3192445, 5107912, 6384890, 10215824, 12769780, 25539560, 51079120]

約数ペア:

[(1, 51079120), (2, 25539560), (4, 12769780), (5, 10215824), (8, 6384890), (10, 5107912), (16, 3192445), (20, 2553956), (40, 1276978), (80, 638489)]