256963712

素因数分解:

$2^7\times {\mathrm{31}}^2\times {\mathrm{2089}}^1$

素因数の和:2165

約数の個数: 48

約数和(自身を含む): 529219350

約数和(自身を除く): 272255638

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 961, 992, 1922, 1984, 2089, 3844, 3968, 4178, 7688, 8356, 15376, 16712, 30752, 33424, 61504, 64759, 66848, 123008, 129518, 133696, 259036, 267392, 518072, 1036144, 2007529, 2072288, 4015058, 4144576, 8030116, 8289152, 16060232, 32120464, 64240928, 128481856, 256963712]

約数ペア:

[(1, 256963712), (2, 128481856), (4, 64240928), (8, 32120464), (16, 16060232), (31, 8289152), (32, 8030116), (62, 4144576), (64, 4015058), (124, 2072288), (128, 2007529), (248, 1036144), (496, 518072), (961, 267392), (992, 259036), (1922, 133696), (1984, 129518), (2089, 123008), (3844, 66848), (3968, 64759), (4178, 61504), (7688, 33424), (8356, 30752), (15376, 16712)]