19900796

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1087}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 36556800

約数和(自身を除く): 16656004

約数列:

[1, 2, 4, 23, 46, 92, 199, 398, 796, 1087, 2174, 4348, 4577, 9154, 18308, 25001, 50002, 100004, 216313, 432626, 865252, 4975199, 9950398, 19900796]

約数ペア:

[(1, 19900796), (2, 9950398), (4, 4975199), (23, 865252), (46, 432626), (92, 216313), (199, 100004), (398, 50002), (796, 25001), (1087, 18308), (2174, 9154), (4348, 4577)]