128203972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79531}}^1$

素因数の和:79579

約数の個数: 24

約数和(自身を含む): 249412352

約数和(自身を除く): 121208380

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 79531, 159062, 318124, 1033903, 2067806, 2465461, 4135612, 4930922, 9861844, 32050993, 64101986, 128203972]

約数ペア:

[(1, 128203972), (2, 64101986), (4, 32050993), (13, 9861844), (26, 4930922), (31, 4135612), (52, 2465461), (62, 2067806), (124, 1033903), (403, 318124), (806, 159062), (1612, 79531)]