90571905

素因数分解:

$3^3\times 5^1\times {\mathrm{670903}}^1$

素因数の和:670917

約数の個数: 16

約数和(自身を含む): 161016960

約数和(自身を除く): 70445055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 670903, 2012709, 3354515, 6038127, 10063545, 18114381, 30190635, 90571905]

約数ペア:

[(1, 90571905), (3, 30190635), (5, 18114381), (9, 10063545), (15, 6038127), (27, 3354515), (45, 2012709), (135, 670903)]