661475520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 252

約数和(自身を含む): 2360797920

約数和(自身を除く): 1699322400

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, 144, 155, 160, 180, 186, 192, 239, 240, 248, 279, 288, 310, 320, 360, 372, 465, 478, 480, 496, 558, 576, 620, 717, 720, 744, 930, 956, 960, 961, 992, 1116, 1195, 1240, 1395, 1434, 1440, 1488, 1860, 1912, 1922, 1984, 2151, 2232, 2390, 2480, 2790, 2868, 2880, 2883, 2976, 3585, 3720, 3824, 3844, 4302, 4464, 4780, 4805, 4960, 5580, 5736, 5766, 5952, 7170, 7409, 7440, 7648, 7688, 8604, 8649, 8928, 9560, 9610, 9920, 10755, 11160, 11472, 11532, 14340, 14415, 14818, 14880, 15296, 15376, 17208, 17298, 17856, 19120, 19220, 21510, 22227, 22320, 22944, 23064, 28680, 28830, 29636, 29760, 30752, 34416, 34596, 37045, 38240, 38440, 43020, 43245, 44454, 44640, 45888, 46128, 57360, 57660, 59272, 61504, 66681, 68832, 69192, 74090, 76480, 76880, 86040, 86490, 88908, 89280, 92256, 111135, 114720, 115320, 118544, 133362, 137664, 138384, 148180, 153760, 172080, 172980, 177816, 184512, 222270, 229440, 229679, 230640, 237088, 266724, 276768, 296360, 307520, 333405, 344160, 345960, 355632, 444540, 459358, 461280, 474176, 533448, 553536, 592720, 666810, 688320, 689037, 691920, 711264, 889080, 918716, 922560, 1066896, 1148395, 1185440, 1333620, 1378074, 1383840, 1422528, 1778160, 1837432, 2067111, 2133792, 2296790, 2370880, 2667240, 2756148, 2767680, 3445185, 3556320, 3674864, 4134222, 4267584, 4593580, 5334480, 5512296, 6890370, 7112640, 7349728, 8268444, 9187160, 10335555, 10668960, 11024592, 13780740, 14699456, 16536888, 18374320, 20671110, 21337920, 22049184, 27561480, 33073776, 36748640, 41342220, 44098368, 55122960, 66147552, 73497280, 82684440, 110245920, 132295104, 165368880, 220491840, 330737760, 661475520]

約数ペア:

[(1, 661475520), (2, 330737760), (3, 220491840), (4, 165368880), (5, 132295104), (6, 110245920), (8, 82684440), (9, 73497280), (10, 66147552), (12, 55122960), (15, 44098368), (16, 41342220), (18, 36748640), (20, 33073776), (24, 27561480), (30, 22049184), (31, 21337920), (32, 20671110), (36, 18374320), (40, 16536888), (45, 14699456), (48, 13780740), (60, 11024592), (62, 10668960), (64, 10335555), (72, 9187160), (80, 8268444), (90, 7349728), (93, 7112640), (96, 6890370), (120, 5512296), (124, 5334480), (144, 4593580), (155, 4267584), (160, 4134222), (180, 3674864), (186, 3556320), (192, 3445185), (239, 2767680), (240, 2756148), (248, 2667240), (279, 2370880), (288, 2296790), (310, 2133792), (320, 2067111), (360, 1837432), (372, 1778160), (465, 1422528), (478, 1383840), (480, 1378074), (496, 1333620), (558, 1185440), (576, 1148395), (620, 1066896), (717, 922560), (720, 918716), (744, 889080), (930, 711264), (956, 691920), (960, 689037), (961, 688320), (992, 666810), (1116, 592720), (1195, 553536), (1240, 533448), (1395, 474176), (1434, 461280), (1440, 459358), (1488, 444540), (1860, 355632), (1912, 345960), (1922, 344160), (1984, 333405), (2151, 307520), (2232, 296360), (2390, 276768), (2480, 266724), (2790, 237088), (2868, 230640), (2880, 229679), (2883, 229440), (2976, 222270), (3585, 184512), (3720, 177816), (3824, 172980), (3844, 172080), (4302, 153760), (4464, 148180), (4780, 138384), (4805, 137664), (4960, 133362), (5580, 118544), (5736, 115320), (5766, 114720), (5952, 111135), (7170, 92256), (7409, 89280), (7440, 88908), (7648, 86490), (7688, 86040), (8604, 76880), (8649, 76480), (8928, 74090), (9560, 69192), (9610, 68832), (9920, 66681), (10755, 61504), (11160, 59272), (11472, 57660), (11532, 57360), (14340, 46128), (14415, 45888), (14818, 44640), (14880, 44454), (15296, 43245), (15376, 43020), (17208, 38440), (17298, 38240), (17856, 37045), (19120, 34596), (19220, 34416), (21510, 30752), (22227, 29760), (22320, 29636), (22944, 28830), (23064, 28680)]