51176080

素因数分解:

$2^4\times 5^1\times {\mathrm{639701}}^1$

素因数の和:639714

約数の個数: 20

約数和(自身を含む): 118984572

約数和(自身を除く): 67808492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639701, 1279402, 2558804, 3198505, 5117608, 6397010, 10235216, 12794020, 25588040, 51176080]

約数ペア:

[(1, 51176080), (2, 25588040), (4, 12794020), (5, 10235216), (8, 6397010), (10, 5117608), (16, 3198505), (20, 2558804), (40, 1279402), (80, 639701)]