80701920

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:519

約数の個数: 240

約数和(自身を含む): 307359360

約数和(自身を除く): 226657440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 479, 480, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 958, 1040, 1053, 1080, 1170, 1248, 1296, 1404, 1437, 1440, 1560, 1620, 1755, 1872, 1916, 2080, 2106, 2160, 2340, 2395, 2592, 2808, 2874, 3120, 3240, 3510, 3744, 3832, 4212, 4311, 4320, 4680, 4790, 5265, 5616, 5748, 6227, 6240, 6480, 7020, 7185, 7664, 8424, 8622, 9360, 9580, 10530, 11232, 11496, 12454, 12933, 12960, 14040, 14370, 15328, 16848, 17244, 18681, 18720, 19160, 21060, 21555, 22992, 24908, 25866, 28080, 28740, 31135, 33696, 34488, 37362, 38320, 38799, 42120, 43110, 45984, 49816, 51732, 56043, 56160, 57480, 62270, 64665, 68976, 74724, 76640, 77598, 84240, 86220, 93405, 99632, 103464, 112086, 114960, 124540, 129330, 137952, 149448, 155196, 168129, 168480, 172440, 186810, 193995, 199264, 206928, 224172, 229920, 249080, 258660, 280215, 298896, 310392, 336258, 344880, 373620, 387990, 413856, 448344, 498160, 504387, 517320, 560430, 597792, 620784, 672516, 689760, 747240, 775980, 840645, 896688, 996320, 1008774, 1034640, 1120860, 1241568, 1345032, 1494480, 1551960, 1681290, 1793376, 2017548, 2069280, 2241720, 2521935, 2690064, 2988960, 3103920, 3362580, 4035096, 4483440, 5043870, 5380128, 6207840, 6725160, 8070192, 8966880, 10087740, 13450320, 16140384, 20175480, 26900640, 40350960, 80701920]

約数ペア:

[(1, 80701920), (2, 40350960), (3, 26900640), (4, 20175480), (5, 16140384), (6, 13450320), (8, 10087740), (9, 8966880), (10, 8070192), (12, 6725160), (13, 6207840), (15, 5380128), (16, 5043870), (18, 4483440), (20, 4035096), (24, 3362580), (26, 3103920), (27, 2988960), (30, 2690064), (32, 2521935), (36, 2241720), (39, 2069280), (40, 2017548), (45, 1793376), (48, 1681290), (52, 1551960), (54, 1494480), (60, 1345032), (65, 1241568), (72, 1120860), (78, 1034640), (80, 1008774), (81, 996320), (90, 896688), (96, 840645), (104, 775980), (108, 747240), (117, 689760), (120, 672516), (130, 620784), (135, 597792), (144, 560430), (156, 517320), (160, 504387), (162, 498160), (180, 448344), (195, 413856), (208, 387990), (216, 373620), (234, 344880), (240, 336258), (260, 310392), (270, 298896), (288, 280215), (312, 258660), (324, 249080), (351, 229920), (360, 224172), (390, 206928), (405, 199264), (416, 193995), (432, 186810), (468, 172440), (479, 168480), (480, 168129), (520, 155196), (540, 149448), (585, 137952), (624, 129330), (648, 124540), (702, 114960), (720, 112086), (780, 103464), (810, 99632), (864, 93405), (936, 86220), (958, 84240), (1040, 77598), (1053, 76640), (1080, 74724), (1170, 68976), (1248, 64665), (1296, 62270), (1404, 57480), (1437, 56160), (1440, 56043), (1560, 51732), (1620, 49816), (1755, 45984), (1872, 43110), (1916, 42120), (2080, 38799), (2106, 38320), (2160, 37362), (2340, 34488), (2395, 33696), (2592, 31135), (2808, 28740), (2874, 28080), (3120, 25866), (3240, 24908), (3510, 22992), (3744, 21555), (3832, 21060), (4212, 19160), (4311, 18720), (4320, 18681), (4680, 17244), (4790, 16848), (5265, 15328), (5616, 14370), (5748, 14040), (6227, 12960), (6240, 12933), (6480, 12454), (7020, 11496), (7185, 11232), (7664, 10530), (8424, 9580), (8622, 9360)]