81480960

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 216

約数和(自身を含む): 308022624

約数和(自身を除く): 226541664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 528, 576, 640, 643, 660, 704, 720, 768, 792, 880, 960, 990, 1056, 1152, 1280, 1286, 1320, 1408, 1440, 1584, 1760, 1920, 1929, 1980, 2112, 2304, 2572, 2640, 2816, 2880, 3168, 3215, 3520, 3840, 3858, 3960, 4224, 5144, 5280, 5760, 5787, 6336, 6430, 7040, 7073, 7716, 7920, 8448, 9645, 10288, 10560, 11520, 11574, 12672, 12860, 14080, 14146, 15432, 15840, 19290, 20576, 21120, 21219, 23148, 25344, 25720, 28292, 28935, 30864, 31680, 35365, 38580, 41152, 42240, 42438, 46296, 51440, 56584, 57870, 61728, 63360, 63657, 70730, 77160, 82304, 84876, 92592, 102880, 106095, 113168, 115740, 123456, 126720, 127314, 141460, 154320, 164608, 169752, 185184, 205760, 212190, 226336, 231480, 246912, 254628, 282920, 308640, 318285, 339504, 370368, 411520, 424380, 452672, 462960, 493824, 509256, 565840, 617280, 636570, 679008, 740736, 823040, 848760, 905344, 925920, 1018512, 1131680, 1234560, 1273140, 1358016, 1481472, 1697520, 1810688, 1851840, 2037024, 2263360, 2469120, 2546280, 2716032, 3395040, 3703680, 4074048, 4526720, 5092560, 5432064, 6790080, 7407360, 8148096, 9053440, 10185120, 13580160, 16296192, 20370240, 27160320, 40740480, 81480960]

約数ペア:

[(1, 81480960), (2, 40740480), (3, 27160320), (4, 20370240), (5, 16296192), (6, 13580160), (8, 10185120), (9, 9053440), (10, 8148096), (11, 7407360), (12, 6790080), (15, 5432064), (16, 5092560), (18, 4526720), (20, 4074048), (22, 3703680), (24, 3395040), (30, 2716032), (32, 2546280), (33, 2469120), (36, 2263360), (40, 2037024), (44, 1851840), (45, 1810688), (48, 1697520), (55, 1481472), (60, 1358016), (64, 1273140), (66, 1234560), (72, 1131680), (80, 1018512), (88, 925920), (90, 905344), (96, 848760), (99, 823040), (110, 740736), (120, 679008), (128, 636570), (132, 617280), (144, 565840), (160, 509256), (165, 493824), (176, 462960), (180, 452672), (192, 424380), (198, 411520), (220, 370368), (240, 339504), (256, 318285), (264, 308640), (288, 282920), (320, 254628), (330, 246912), (352, 231480), (360, 226336), (384, 212190), (396, 205760), (440, 185184), (480, 169752), (495, 164608), (528, 154320), (576, 141460), (640, 127314), (643, 126720), (660, 123456), (704, 115740), (720, 113168), (768, 106095), (792, 102880), (880, 92592), (960, 84876), (990, 82304), (1056, 77160), (1152, 70730), (1280, 63657), (1286, 63360), (1320, 61728), (1408, 57870), (1440, 56584), (1584, 51440), (1760, 46296), (1920, 42438), (1929, 42240), (1980, 41152), (2112, 38580), (2304, 35365), (2572, 31680), (2640, 30864), (2816, 28935), (2880, 28292), (3168, 25720), (3215, 25344), (3520, 23148), (3840, 21219), (3858, 21120), (3960, 20576), (4224, 19290), (5144, 15840), (5280, 15432), (5760, 14146), (5787, 14080), (6336, 12860), (6430, 12672), (7040, 11574), (7073, 11520), (7716, 10560), (7920, 10288), (8448, 9645)]