16660145

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 20638800

約数和(自身を除く): 3978655

約数列:

[1, 5, 41, 181, 205, 449, 905, 2245, 7421, 18409, 37105, 81269, 92045, 406345, 3332029, 16660145]

約数ペア:

[(1, 16660145), (5, 3332029), (41, 406345), (181, 92045), (205, 81269), (449, 37105), (905, 18409), (2245, 7421)]