128567248

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{186871}}^1$

素因数の和:186922

約数の個数: 20

約数和(自身を含む): 254893408

約数和(自身を除く): 126326160

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 186871, 373742, 747484, 1494968, 2989936, 8035453, 16070906, 32141812, 64283624, 128567248]

約数ペア:

[(1, 128567248), (2, 64283624), (4, 32141812), (8, 16070906), (16, 8035453), (43, 2989936), (86, 1494968), (172, 747484), (344, 373742), (688, 186871)]