128239665

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{34061}}^1$

素因数の和:34320

約数の個数: 16

約数和(自身を含む): 206006976

約数和(自身を除く): 77767311

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 34061, 102183, 170305, 510915, 8549311, 25647933, 42746555, 128239665]

約数ペア:

[(1, 128239665), (3, 42746555), (5, 25647933), (15, 8549311), (251, 510915), (753, 170305), (1255, 102183), (3765, 34061)]