256217637

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{503}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 379669248

約数和(自身を除く): 123451611

約数列:

[1, 3, 13, 37, 39, 111, 353, 481, 503, 1059, 1443, 1509, 4589, 6539, 13061, 13767, 18611, 19617, 39183, 55833, 169793, 177559, 241943, 509379, 532677, 725829, 2308267, 6569683, 6924801, 19709049, 85405879, 256217637]

約数ペア:

[(1, 256217637), (3, 85405879), (13, 19709049), (37, 6924801), (39, 6569683), (111, 2308267), (353, 725829), (481, 532677), (503, 509379), (1059, 241943), (1443, 177559), (1509, 169793), (4589, 55833), (6539, 39183), (13061, 19617), (13767, 18611)]