128395198

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{16979}}^1$

素因数の和:17199

約数の個数: 16

約数和(自身を含む): 203760000

約数和(自身を除く): 75364802

約数列:

[1, 2, 19, 38, 199, 398, 3781, 7562, 16979, 33958, 322601, 645202, 3378821, 6757642, 64197599, 128395198]

約数ペア:

[(1, 128395198), (2, 64197599), (19, 6757642), (38, 3378821), (199, 645202), (398, 322601), (3781, 33958), (7562, 16979)]