291220085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{28537}}^1$

素因数の和:28712

約数の個数: 16

約数和(自身を含む): 378756336

約数和(自身を除く): 87536251

約数列:

[1, 5, 13, 65, 157, 785, 2041, 10205, 28537, 142685, 370981, 1854905, 4480309, 22401545, 58244017, 291220085]

約数ペア:

[(1, 291220085), (5, 58244017), (13, 22401545), (65, 4480309), (157, 1854905), (785, 370981), (2041, 142685), (10205, 28537)]