66538640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{118819}}^1$

素因数の和:118839

約数の個数: 40

約数和(自身を含む): 176804160

約数和(自身を除く): 110265520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 118819, 237638, 475276, 594095, 831733, 950552, 1188190, 1663466, 1901104, 2376380, 3326932, 4158665, 4752760, 6653864, 8317330, 9505520, 13307728, 16634660, 33269320, 66538640]

約数ペア:

[(1, 66538640), (2, 33269320), (4, 16634660), (5, 13307728), (7, 9505520), (8, 8317330), (10, 6653864), (14, 4752760), (16, 4158665), (20, 3326932), (28, 2376380), (35, 1901104), (40, 1663466), (56, 1188190), (70, 950552), (80, 831733), (112, 594095), (140, 475276), (280, 237638), (560, 118819)]