278525637

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{601}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 461483568

約数和(自身を除く): 182957931

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 233, 601, 663, 699, 1803, 1989, 2097, 3029, 3961, 5409, 7813, 9087, 10217, 11883, 23439, 27261, 30651, 35649, 51493, 70317, 91953, 132821, 140033, 154479, 398463, 420099, 463437, 1195389, 1260297, 1820429, 2380561, 5461287, 7141683, 16383861, 21425049, 30947293, 92841879, 278525637]

約数ペア:

[(1, 278525637), (3, 92841879), (9, 30947293), (13, 21425049), (17, 16383861), (39, 7141683), (51, 5461287), (117, 2380561), (153, 1820429), (221, 1260297), (233, 1195389), (601, 463437), (663, 420099), (699, 398463), (1803, 154479), (1989, 140033), (2097, 132821), (3029, 91953), (3961, 70317), (5409, 51493), (7813, 35649), (9087, 30651), (10217, 27261), (11883, 23439)]