81583725

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 139276800

約数和(自身を除く): 57693075

約数列:

[1, 3, 5, 15, 25, 59, 75, 103, 177, 179, 295, 309, 515, 537, 885, 895, 1475, 1545, 2575, 2685, 4425, 4475, 6077, 7725, 10561, 13425, 18231, 18437, 30385, 31683, 52805, 55311, 91155, 92185, 151925, 158415, 264025, 276555, 455775, 460925, 792075, 1087783, 1382775, 3263349, 5438915, 16316745, 27194575, 81583725]

約数ペア:

[(1, 81583725), (3, 27194575), (5, 16316745), (15, 5438915), (25, 3263349), (59, 1382775), (75, 1087783), (103, 792075), (177, 460925), (179, 455775), (295, 276555), (309, 264025), (515, 158415), (537, 151925), (885, 92185), (895, 91155), (1475, 55311), (1545, 52805), (2575, 31683), (2685, 30385), (4425, 18437), (4475, 18231), (6077, 13425), (7725, 10561)]