25567280

素因数分解:

$2^4\times 5^1\times {\mathrm{319591}}^1$

素因数の和:319604

約数の個数: 20

約数和(自身を含む): 59444112

約数和(自身を除く): 33876832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 319591, 639182, 1278364, 1597955, 2556728, 3195910, 5113456, 6391820, 12783640, 25567280]

約数ペア:

[(1, 25567280), (2, 12783640), (4, 6391820), (5, 5113456), (8, 3195910), (10, 2556728), (16, 1597955), (20, 1278364), (40, 639182), (80, 319591)]