538640

素因数分解:

$2^4\times 5^1\times {\mathrm{6733}}^1$

素因数の和:6746

約数の個数: 20

約数和(自身を含む): 1252524

約数和(自身を除く): 713884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6733, 13466, 26932, 33665, 53864, 67330, 107728, 134660, 269320, 538640]

約数ペア:

[(1, 538640), (2, 269320), (4, 134660), (5, 107728), (8, 67330), (10, 53864), (16, 33665), (20, 26932), (40, 13466), (80, 6733)]