128522781

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:647

約数の個数: 40

約数和(自身を含む): 202118400

約数和(自身を除く): 73595619

約数列:

[1, 3, 9, 23, 27, 69, 81, 149, 207, 447, 463, 621, 1341, 1389, 1863, 3427, 4023, 4167, 10281, 10649, 12069, 12501, 30843, 31947, 37503, 68987, 92529, 95841, 206961, 277587, 287523, 620883, 862569, 1586701, 1862649, 4760103, 5587947, 14280309, 42840927, 128522781]

約数ペア:

[(1, 128522781), (3, 42840927), (9, 14280309), (23, 5587947), (27, 4760103), (69, 1862649), (81, 1586701), (149, 862569), (207, 620883), (447, 287523), (463, 277587), (621, 206961), (1341, 95841), (1389, 92529), (1863, 68987), (3427, 37503), (4023, 31947), (4167, 30843), (10281, 12501), (10649, 12069)]