40207280

素因数分解:

$2^4\times 5^1\times {\mathrm{502591}}^1$

素因数の和:502604

約数の個数: 20

約数和(自身を含む): 93482112

約数和(自身を除く): 53274832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 502591, 1005182, 2010364, 2512955, 4020728, 5025910, 8041456, 10051820, 20103640, 40207280]

約数ペア:

[(1, 40207280), (2, 20103640), (4, 10051820), (5, 8041456), (8, 5025910), (10, 4020728), (16, 2512955), (20, 2010364), (40, 1005182), (80, 502591)]