64280485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{409}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 83822040

約数和(自身を除く): 19541555

約数列:

[1, 5, 17, 43, 85, 215, 409, 731, 1849, 2045, 3655, 6953, 9245, 17587, 31433, 34765, 87935, 157165, 298979, 756241, 1494895, 3781205, 12856097, 64280485]

約数ペア:

[(1, 64280485), (5, 12856097), (17, 3781205), (43, 1494895), (85, 756241), (215, 298979), (409, 157165), (731, 87935), (1849, 34765), (2045, 31433), (3655, 17587), (6953, 9245)]