1231605

素因数分解:

$3^4\times 5^1\times {\mathrm{3041}}^1$

素因数の和:3058

約数の個数: 20

約数和(自身を含む): 2208492

約数和(自身を除く): 976887

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3041, 9123, 15205, 27369, 45615, 82107, 136845, 246321, 410535, 1231605]

約数ペア:

[(1, 1231605), (3, 410535), (5, 246321), (9, 136845), (15, 82107), (27, 45615), (45, 27369), (81, 15205), (135, 9123), (405, 3041)]