287145

素因数分解:

$3^4\times 5^1\times {\mathrm{709}}^1$

素因数の和:726

約数の個数: 20

約数和(自身を含む): 515460

約数和(自身を除く): 228315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 709, 2127, 3545, 6381, 10635, 19143, 31905, 57429, 95715, 287145]

約数ペア:

[(1, 287145), (3, 95715), (5, 57429), (9, 31905), (15, 19143), (27, 10635), (45, 6381), (81, 3545), (135, 2127), (405, 709)]