81391680

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:561

約数の個数: 168

約数和(自身を含む): 285292800

約数和(自身を除く): 203901120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 64, 72, 80, 90, 96, 118, 120, 144, 160, 177, 180, 192, 236, 240, 288, 295, 320, 354, 360, 472, 479, 480, 531, 576, 590, 708, 720, 885, 944, 958, 960, 1062, 1180, 1416, 1437, 1440, 1770, 1888, 1916, 2124, 2360, 2395, 2655, 2832, 2874, 2880, 3540, 3776, 3832, 4248, 4311, 4720, 4790, 5310, 5664, 5748, 7080, 7185, 7664, 8496, 8622, 9440, 9580, 10620, 11328, 11496, 14160, 14370, 15328, 16992, 17244, 18880, 19160, 21240, 21555, 22992, 28261, 28320, 28740, 30656, 33984, 34488, 38320, 42480, 43110, 45984, 56522, 56640, 57480, 68976, 76640, 84783, 84960, 86220, 91968, 113044, 114960, 137952, 141305, 153280, 169566, 169920, 172440, 226088, 229920, 254349, 275904, 282610, 339132, 344880, 423915, 452176, 459840, 508698, 565220, 678264, 689760, 847830, 904352, 1017396, 1130440, 1271745, 1356528, 1379520, 1695660, 1808704, 2034792, 2260880, 2543490, 2713056, 3391320, 4069584, 4521760, 5086980, 5426112, 6782640, 8139168, 9043520, 10173960, 13565280, 16278336, 20347920, 27130560, 40695840, 81391680]

約数ペア:

[(1, 81391680), (2, 40695840), (3, 27130560), (4, 20347920), (5, 16278336), (6, 13565280), (8, 10173960), (9, 9043520), (10, 8139168), (12, 6782640), (15, 5426112), (16, 5086980), (18, 4521760), (20, 4069584), (24, 3391320), (30, 2713056), (32, 2543490), (36, 2260880), (40, 2034792), (45, 1808704), (48, 1695660), (59, 1379520), (60, 1356528), (64, 1271745), (72, 1130440), (80, 1017396), (90, 904352), (96, 847830), (118, 689760), (120, 678264), (144, 565220), (160, 508698), (177, 459840), (180, 452176), (192, 423915), (236, 344880), (240, 339132), (288, 282610), (295, 275904), (320, 254349), (354, 229920), (360, 226088), (472, 172440), (479, 169920), (480, 169566), (531, 153280), (576, 141305), (590, 137952), (708, 114960), (720, 113044), (885, 91968), (944, 86220), (958, 84960), (960, 84783), (1062, 76640), (1180, 68976), (1416, 57480), (1437, 56640), (1440, 56522), (1770, 45984), (1888, 43110), (1916, 42480), (2124, 38320), (2360, 34488), (2395, 33984), (2655, 30656), (2832, 28740), (2874, 28320), (2880, 28261), (3540, 22992), (3776, 21555), (3832, 21240), (4248, 19160), (4311, 18880), (4720, 17244), (4790, 16992), (5310, 15328), (5664, 14370), (5748, 14160), (7080, 11496), (7185, 11328), (7664, 10620), (8496, 9580), (8622, 9440)]