257248494

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 590976000

約数和(自身を除く): 333727506

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 199, 222, 333, 398, 597, 647, 666, 999, 1194, 1294, 1791, 1941, 1998, 3582, 3882, 5373, 5823, 7363, 10746, 11646, 14726, 17469, 22089, 23939, 34938, 44178, 47878, 66267, 71817, 128753, 132534, 143634, 198801, 215451, 257506, 386259, 397602, 430902, 646353, 772518, 1158777, 1292706, 2317554, 3476331, 4763861, 6952662, 9527722, 14291583, 28583166, 42874749, 85749498, 128624247, 257248494]

約数ペア:

[(1, 257248494), (2, 128624247), (3, 85749498), (6, 42874749), (9, 28583166), (18, 14291583), (27, 9527722), (37, 6952662), (54, 4763861), (74, 3476331), (111, 2317554), (199, 1292706), (222, 1158777), (333, 772518), (398, 646353), (597, 430902), (647, 397602), (666, 386259), (999, 257506), (1194, 215451), (1294, 198801), (1791, 143634), (1941, 132534), (1998, 128753), (3582, 71817), (3882, 66267), (5373, 47878), (5823, 44178), (7363, 34938), (10746, 23939), (11646, 22089), (14726, 17469)]