28267815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 48903264

約数和(自身を除く): 20635449

約数列:

[1, 3, 5, 15, 31, 37, 53, 93, 111, 155, 159, 185, 265, 465, 555, 795, 961, 1147, 1643, 1961, 2883, 3441, 4805, 4929, 5735, 5883, 8215, 9805, 14415, 17205, 24645, 29415, 35557, 50933, 60791, 106671, 152799, 177785, 182373, 254665, 303955, 533355, 763995, 911865, 1884521, 5653563, 9422605, 28267815]

約数ペア:

[(1, 28267815), (3, 9422605), (5, 5653563), (15, 1884521), (31, 911865), (37, 763995), (53, 533355), (93, 303955), (111, 254665), (155, 182373), (159, 177785), (185, 152799), (265, 106671), (465, 60791), (555, 50933), (795, 35557), (961, 29415), (1147, 24645), (1643, 17205), (1961, 14415), (2883, 9805), (3441, 8215), (4805, 5883), (4929, 5735)]