128656444

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{17471}}^1$

素因数の和:17745

約数の個数: 24

約数和(自身を含む): 258306048

約数和(自身を除く): 129649604

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 3682, 7364, 17471, 34942, 69884, 122297, 244594, 489188, 4594873, 9189746, 18379492, 32164111, 64328222, 128656444]

約数ペア:

[(1, 128656444), (2, 64328222), (4, 32164111), (7, 18379492), (14, 9189746), (28, 4594873), (263, 489188), (526, 244594), (1052, 122297), (1841, 69884), (3682, 34942), (7364, 17471)]