81066240

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:285

約数の個数: 216

約数和(自身を含む): 290803968

約数和(自身を除く): 209737728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 227, 240, 248, 256, 279, 288, 310, 320, 360, 372, 384, 454, 465, 480, 496, 558, 576, 620, 640, 681, 720, 744, 768, 908, 930, 960, 992, 1116, 1135, 1152, 1240, 1280, 1362, 1395, 1440, 1488, 1816, 1860, 1920, 1984, 2043, 2232, 2270, 2304, 2480, 2724, 2790, 2880, 2976, 3405, 3632, 3720, 3840, 3968, 4086, 4464, 4540, 4960, 5448, 5580, 5760, 5952, 6810, 7037, 7264, 7440, 7936, 8172, 8928, 9080, 9920, 10215, 10896, 11160, 11520, 11904, 13620, 14074, 14528, 14880, 16344, 17856, 18160, 19840, 20430, 21111, 21792, 22320, 23808, 27240, 28148, 29056, 29760, 32688, 35185, 35712, 36320, 39680, 40860, 42222, 43584, 44640, 54480, 56296, 58112, 59520, 63333, 65376, 70370, 71424, 72640, 81720, 84444, 87168, 89280, 105555, 108960, 112592, 119040, 126666, 130752, 140740, 145280, 163440, 168888, 174336, 178560, 211110, 217920, 225184, 253332, 261504, 281480, 290560, 316665, 326880, 337776, 357120, 422220, 435840, 450368, 506664, 523008, 562960, 633330, 653760, 675552, 844440, 871680, 900736, 1013328, 1125920, 1266660, 1307520, 1351104, 1688880, 1801472, 2026656, 2251840, 2533320, 2615040, 2702208, 3377760, 4053312, 4503680, 5066640, 5404416, 6755520, 8106624, 9007360, 10133280, 13511040, 16213248, 20266560, 27022080, 40533120, 81066240]

約数ペア:

[(1, 81066240), (2, 40533120), (3, 27022080), (4, 20266560), (5, 16213248), (6, 13511040), (8, 10133280), (9, 9007360), (10, 8106624), (12, 6755520), (15, 5404416), (16, 5066640), (18, 4503680), (20, 4053312), (24, 3377760), (30, 2702208), (31, 2615040), (32, 2533320), (36, 2251840), (40, 2026656), (45, 1801472), (48, 1688880), (60, 1351104), (62, 1307520), (64, 1266660), (72, 1125920), (80, 1013328), (90, 900736), (93, 871680), (96, 844440), (120, 675552), (124, 653760), (128, 633330), (144, 562960), (155, 523008), (160, 506664), (180, 450368), (186, 435840), (192, 422220), (227, 357120), (240, 337776), (248, 326880), (256, 316665), (279, 290560), (288, 281480), (310, 261504), (320, 253332), (360, 225184), (372, 217920), (384, 211110), (454, 178560), (465, 174336), (480, 168888), (496, 163440), (558, 145280), (576, 140740), (620, 130752), (640, 126666), (681, 119040), (720, 112592), (744, 108960), (768, 105555), (908, 89280), (930, 87168), (960, 84444), (992, 81720), (1116, 72640), (1135, 71424), (1152, 70370), (1240, 65376), (1280, 63333), (1362, 59520), (1395, 58112), (1440, 56296), (1488, 54480), (1816, 44640), (1860, 43584), (1920, 42222), (1984, 40860), (2043, 39680), (2232, 36320), (2270, 35712), (2304, 35185), (2480, 32688), (2724, 29760), (2790, 29056), (2880, 28148), (2976, 27240), (3405, 23808), (3632, 22320), (3720, 21792), (3840, 21111), (3968, 20430), (4086, 19840), (4464, 18160), (4540, 17856), (4960, 16344), (5448, 14880), (5580, 14528), (5760, 14074), (5952, 13620), (6810, 11904), (7037, 11520), (7264, 11160), (7440, 10896), (7936, 10215), (8172, 9920), (8928, 9080)]