28673905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10259}}^1$

素因数の和:10320

約数の個数: 16

約数和(自身を含む): 37920960

約数和(自身を除く): 9247055

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 10259, 51295, 133367, 441137, 666835, 2205685, 5734781, 28673905]

約数ペア:

[(1, 28673905), (5, 5734781), (13, 2205685), (43, 666835), (65, 441137), (215, 133367), (559, 51295), (2795, 10259)]