20009128

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131639}}^1$

素因数の和:131664

約数の個数: 16

約数和(自身を含む): 39492000

約数和(自身を除く): 19482872

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131639, 263278, 526556, 1053112, 2501141, 5002282, 10004564, 20009128]

約数ペア:

[(1, 20009128), (2, 10004564), (4, 5002282), (8, 2501141), (19, 1053112), (38, 526556), (76, 263278), (152, 131639)]