128265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 217728

約数和(自身を除く): 89463

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 503, 1509, 2515, 7545, 8551, 25653, 42755, 128265]

約数ペア:

[(1, 128265), (3, 42755), (5, 25653), (15, 8551), (17, 7545), (51, 2515), (85, 1509), (255, 503)]