201491145

素因数分解:

$3^4\times 5^1\times {\mathrm{497509}}^1$

素因数の和:497526

約数の個数: 20

約数和(自身を含む): 361192260

約数和(自身を除く): 159701115

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 497509, 1492527, 2487545, 4477581, 7462635, 13432743, 22387905, 40298229, 67163715, 201491145]

約数ペア:

[(1, 201491145), (3, 67163715), (5, 40298229), (9, 22387905), (15, 13432743), (27, 7462635), (45, 4477581), (81, 2487545), (135, 1492527), (405, 497509)]