20320004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{163871}}^1$

素因数の和:163906

約数の個数: 12

約数和(自身を含む): 36707328

約数和(自身を除く): 16387324

約数列:

[1, 2, 4, 31, 62, 124, 163871, 327742, 655484, 5080001, 10160002, 20320004]

約数ペア:

[(1, 20320004), (2, 10160002), (4, 5080001), (31, 655484), (62, 327742), (124, 163871)]