20656010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23209}}^1$

素因数の和:23305

約数の個数: 16

約数和(自身を含む): 37600200

約数和(自身を除く): 16944190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23209, 46418, 116045, 232090, 2065601, 4131202, 10328005, 20656010]

約数ペア:

[(1, 20656010), (2, 10328005), (5, 4131202), (10, 2065601), (89, 232090), (178, 116045), (445, 46418), (890, 23209)]