81618240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 224

約数和(自身を含む): 289681920

約数和(自身を除く): 208063680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 59, 60, 64, 66, 80, 88, 96, 110, 118, 120, 131, 132, 160, 165, 176, 177, 192, 220, 236, 240, 262, 264, 295, 320, 330, 352, 354, 393, 440, 472, 480, 524, 528, 590, 649, 655, 660, 704, 708, 786, 880, 885, 944, 960, 1048, 1056, 1180, 1298, 1310, 1320, 1416, 1441, 1572, 1760, 1770, 1888, 1947, 1965, 2096, 2112, 2360, 2596, 2620, 2640, 2832, 2882, 3144, 3245, 3520, 3540, 3776, 3894, 3930, 4192, 4323, 4720, 5192, 5240, 5280, 5664, 5764, 6288, 6490, 7080, 7205, 7729, 7788, 7860, 8384, 8646, 9440, 9735, 10384, 10480, 10560, 11328, 11528, 12576, 12980, 14160, 14410, 15458, 15576, 15720, 17292, 18880, 19470, 20768, 20960, 21615, 23056, 23187, 25152, 25960, 28320, 28820, 30916, 31152, 31440, 34584, 38645, 38940, 41536, 41920, 43230, 46112, 46374, 51920, 56640, 57640, 61832, 62304, 62880, 69168, 77290, 77880, 85019, 86460, 92224, 92748, 103840, 115280, 115935, 123664, 124608, 125760, 138336, 154580, 155760, 170038, 172920, 185496, 207680, 230560, 231870, 247328, 255057, 276672, 309160, 311520, 340076, 345840, 370992, 425095, 461120, 463740, 494656, 510114, 618320, 623040, 680152, 691680, 741984, 850190, 927480, 1020228, 1236640, 1275285, 1360304, 1383360, 1483968, 1700380, 1854960, 2040456, 2473280, 2550570, 2720608, 3400760, 3709920, 4080912, 5101140, 5441216, 6801520, 7419840, 8161824, 10202280, 13603040, 16323648, 20404560, 27206080, 40809120, 81618240]

約数ペア:

[(1, 81618240), (2, 40809120), (3, 27206080), (4, 20404560), (5, 16323648), (6, 13603040), (8, 10202280), (10, 8161824), (11, 7419840), (12, 6801520), (15, 5441216), (16, 5101140), (20, 4080912), (22, 3709920), (24, 3400760), (30, 2720608), (32, 2550570), (33, 2473280), (40, 2040456), (44, 1854960), (48, 1700380), (55, 1483968), (59, 1383360), (60, 1360304), (64, 1275285), (66, 1236640), (80, 1020228), (88, 927480), (96, 850190), (110, 741984), (118, 691680), (120, 680152), (131, 623040), (132, 618320), (160, 510114), (165, 494656), (176, 463740), (177, 461120), (192, 425095), (220, 370992), (236, 345840), (240, 340076), (262, 311520), (264, 309160), (295, 276672), (320, 255057), (330, 247328), (352, 231870), (354, 230560), (393, 207680), (440, 185496), (472, 172920), (480, 170038), (524, 155760), (528, 154580), (590, 138336), (649, 125760), (655, 124608), (660, 123664), (704, 115935), (708, 115280), (786, 103840), (880, 92748), (885, 92224), (944, 86460), (960, 85019), (1048, 77880), (1056, 77290), (1180, 69168), (1298, 62880), (1310, 62304), (1320, 61832), (1416, 57640), (1441, 56640), (1572, 51920), (1760, 46374), (1770, 46112), (1888, 43230), (1947, 41920), (1965, 41536), (2096, 38940), (2112, 38645), (2360, 34584), (2596, 31440), (2620, 31152), (2640, 30916), (2832, 28820), (2882, 28320), (3144, 25960), (3245, 25152), (3520, 23187), (3540, 23056), (3776, 21615), (3894, 20960), (3930, 20768), (4192, 19470), (4323, 18880), (4720, 17292), (5192, 15720), (5240, 15576), (5280, 15458), (5664, 14410), (5764, 14160), (6288, 12980), (6490, 12576), (7080, 11528), (7205, 11328), (7729, 10560), (7788, 10480), (7860, 10384), (8384, 9735), (8646, 9440)]