268245

素因数分解:

$3^3\times 5^1\times {\mathrm{1987}}^1$

素因数の和:2001

約数の個数: 16

約数和(自身を含む): 477120

約数和(自身を除く): 208875

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1987, 5961, 9935, 17883, 29805, 53649, 89415, 268245]

約数ペア:

[(1, 268245), (3, 89415), (5, 53649), (9, 29805), (15, 17883), (27, 9935), (45, 5961), (135, 1987)]