165011985

素因数分解:

$3^4\times 5^1\times {\mathrm{407437}}^1$

素因数の和:407454

約数の個数: 20

約数和(自身を含む): 295799988

約数和(自身を除く): 130788003

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 407437, 1222311, 2037185, 3666933, 6111555, 11000799, 18334665, 33002397, 55003995, 165011985]

約数ペア:

[(1, 165011985), (3, 55003995), (5, 33002397), (9, 18334665), (15, 11000799), (27, 6111555), (45, 3666933), (81, 2037185), (135, 1222311), (405, 407437)]