81311256

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1310

約数の個数: 128

約数和(自身を含む): 254016000

約数和(自身を除く): 172704744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 27, 36, 39, 46, 52, 54, 69, 72, 78, 92, 104, 108, 117, 138, 156, 184, 207, 216, 234, 276, 299, 312, 351, 414, 468, 552, 598, 621, 702, 828, 897, 936, 1196, 1242, 1259, 1404, 1656, 1794, 2392, 2484, 2518, 2691, 2808, 3588, 3777, 4968, 5036, 5382, 7176, 7554, 8073, 10072, 10764, 11331, 15108, 16146, 16367, 21528, 22662, 28957, 30216, 32292, 32734, 33993, 45324, 49101, 57914, 64584, 65468, 67986, 86871, 90648, 98202, 115828, 130936, 135972, 147303, 173742, 196404, 231656, 260613, 271944, 294606, 347484, 376441, 392808, 441909, 521226, 589212, 694968, 752882, 781839, 883818, 1042452, 1129323, 1178424, 1505764, 1563678, 1767636, 2084904, 2258646, 3011528, 3127356, 3387969, 3535272, 4517292, 6254712, 6775938, 9034584, 10163907, 13551876, 20327814, 27103752, 40655628, 81311256]

約数ペア:

[(1, 81311256), (2, 40655628), (3, 27103752), (4, 20327814), (6, 13551876), (8, 10163907), (9, 9034584), (12, 6775938), (13, 6254712), (18, 4517292), (23, 3535272), (24, 3387969), (26, 3127356), (27, 3011528), (36, 2258646), (39, 2084904), (46, 1767636), (52, 1563678), (54, 1505764), (69, 1178424), (72, 1129323), (78, 1042452), (92, 883818), (104, 781839), (108, 752882), (117, 694968), (138, 589212), (156, 521226), (184, 441909), (207, 392808), (216, 376441), (234, 347484), (276, 294606), (299, 271944), (312, 260613), (351, 231656), (414, 196404), (468, 173742), (552, 147303), (598, 135972), (621, 130936), (702, 115828), (828, 98202), (897, 90648), (936, 86871), (1196, 67986), (1242, 65468), (1259, 64584), (1404, 57914), (1656, 49101), (1794, 45324), (2392, 33993), (2484, 32734), (2518, 32292), (2691, 30216), (2808, 28957), (3588, 22662), (3777, 21528), (4968, 16367), (5036, 16146), (5382, 15108), (7176, 11331), (7554, 10764), (8073, 10072)]