255728529

素因数分解:

$3^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{7559}}^1$

素因数の和:7754

約数の個数: 32

約数和(自身を含む): 435456000

約数和(自身を除く): 179727471

約数列:

[1, 3, 7, 9, 21, 27, 63, 179, 189, 537, 1253, 1611, 3759, 4833, 7559, 11277, 22677, 33831, 52913, 68031, 158739, 204093, 476217, 1353061, 1428651, 4059183, 9471427, 12177549, 28414281, 36532647, 85242843, 255728529]

約数ペア:

[(1, 255728529), (3, 85242843), (7, 36532647), (9, 28414281), (21, 12177549), (27, 9471427), (63, 4059183), (179, 1428651), (189, 1353061), (537, 476217), (1253, 204093), (1611, 158739), (3759, 68031), (4833, 52913), (7559, 33831), (11277, 22677)]