78935620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36209}}^1$

素因数の和:36327

約数の個数: 24

約数和(自身を含む): 167290200

約数和(自身を除く): 88354580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36209, 72418, 144836, 181045, 362090, 724180, 3946781, 7893562, 15787124, 19733905, 39467810, 78935620]

約数ペア:

[(1, 78935620), (2, 39467810), (4, 19733905), (5, 15787124), (10, 7893562), (20, 3946781), (109, 724180), (218, 362090), (436, 181045), (545, 144836), (1090, 72418), (2180, 36209)]