20215422720

素因数分解:

$2^8\times 3^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:770

約数の個数: 432

約数和(自身を含む): 73354025472

約数和(自身を除く): 53138602752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 103, 108, 120, 128, 135, 144, 160, 162, 180, 192, 206, 216, 240, 243, 256, 270, 288, 309, 320, 324, 360, 384, 405, 412, 432, 480, 486, 515, 540, 576, 618, 631, 640, 648, 720, 768, 810, 824, 864, 927, 960, 972, 1030, 1080, 1152, 1215, 1236, 1262, 1280, 1296, 1440, 1545, 1620, 1648, 1728, 1854, 1893, 1920, 1944, 2060, 2160, 2304, 2430, 2472, 2524, 2592, 2781, 2880, 3090, 3155, 3240, 3296, 3456, 3708, 3786, 3840, 3888, 4120, 4320, 4635, 4860, 4944, 5048, 5184, 5562, 5679, 5760, 6180, 6310, 6480, 6592, 6912, 7416, 7572, 7776, 8240, 8343, 8640, 9270, 9465, 9720, 9888, 10096, 10368, 11124, 11358, 11520, 12360, 12620, 12960, 13184, 13905, 14832, 15144, 15552, 16480, 16686, 17037, 17280, 18540, 18930, 19440, 19776, 20192, 20736, 22248, 22716, 24720, 25029, 25240, 25920, 26368, 27810, 28395, 29664, 30288, 31104, 32960, 33372, 34074, 34560, 37080, 37860, 38880, 39552, 40384, 41715, 44496, 45432, 49440, 50058, 50480, 51111, 51840, 55620, 56790, 59328, 60576, 62208, 64993, 65920, 66744, 68148, 74160, 75720, 77760, 79104, 80768, 83430, 85185, 88992, 90864, 98880, 100116, 100960, 102222, 103680, 111240, 113580, 118656, 121152, 125145, 129986, 131840, 133488, 136296, 148320, 151440, 153333, 155520, 161536, 166860, 170370, 177984, 181728, 194979, 197760, 200232, 201920, 204444, 222480, 227160, 237312, 242304, 250290, 255555, 259972, 266976, 272592, 296640, 302880, 306666, 311040, 324965, 333720, 340740, 355968, 363456, 389958, 395520, 400464, 403840, 408888, 444960, 454320, 484608, 500580, 511110, 519944, 533952, 545184, 584937, 593280, 605760, 613332, 649930, 667440, 681480, 711936, 726912, 766665, 779916, 800928, 807680, 817776, 889920, 908640, 974895, 1001160, 1022220, 1039888, 1067904, 1090368, 1169874, 1186560, 1211520, 1226664, 1299860, 1334880, 1362960, 1453824, 1533330, 1559832, 1601856, 1635552, 1754811, 1779840, 1817280, 1949790, 2002320, 2044440, 2079776, 2135808, 2180736, 2339748, 2423040, 2453328, 2599720, 2669760, 2725920, 2924685, 3066660, 3119664, 3203712, 3271104, 3509622, 3559680, 3634560, 3899580, 4004640, 4088880, 4159552, 4361472, 4679496, 4906656, 5199440, 5264433, 5339520, 5451840, 5849370, 6133320, 6239328, 6407424, 6542208, 7019244, 7269120, 7799160, 8009280, 8177760, 8319104, 8774055, 9358992, 9813312, 10398880, 10528866, 10679040, 10903680, 11698740, 12266640, 12478656, 13084416, 14038488, 15598320, 15793299, 16018560, 16355520, 16638208, 17548110, 18717984, 19626624, 20797760, 21057732, 21807360, 23397480, 24533280, 24957312, 26322165, 28076976, 31196640, 31586598, 32037120, 32711040, 35096220, 37435968, 39253248, 41595520, 42115464, 46794960, 49066560, 49914624, 52644330, 56153952, 62393280, 63173196, 65422080, 70192440, 74871936, 78966495, 83191040, 84230928, 93589920, 98133120, 105288660, 112307904, 124786560, 126346392, 140384880, 149743872, 157932990, 168461856, 187179840, 196266240, 210577320, 224615808, 249573120, 252692784, 280769760, 315865980, 336923712, 374359680, 421154640, 449231616, 505385568, 561539520, 631731960, 673847424, 748719360, 842309280, 1010771136, 1123079040, 1263463920, 1347694848, 1684618560, 2021542272, 2246158080, 2526927840, 3369237120, 4043084544, 5053855680, 6738474240, 10107711360, 20215422720]

約数ペア:

[(1, 20215422720), (2, 10107711360), (3, 6738474240), (4, 5053855680), (5, 4043084544), (6, 3369237120), (8, 2526927840), (9, 2246158080), (10, 2021542272), (12, 1684618560), (15, 1347694848), (16, 1263463920), (18, 1123079040), (20, 1010771136), (24, 842309280), (27, 748719360), (30, 673847424), (32, 631731960), (36, 561539520), (40, 505385568), (45, 449231616), (48, 421154640), (54, 374359680), (60, 336923712), (64, 315865980), (72, 280769760), (80, 252692784), (81, 249573120), (90, 224615808), (96, 210577320), (103, 196266240), (108, 187179840), (120, 168461856), (128, 157932990), (135, 149743872), (144, 140384880), (160, 126346392), (162, 124786560), (180, 112307904), (192, 105288660), (206, 98133120), (216, 93589920), (240, 84230928), (243, 83191040), (256, 78966495), (270, 74871936), (288, 70192440), (309, 65422080), (320, 63173196), (324, 62393280), (360, 56153952), (384, 52644330), (405, 49914624), (412, 49066560), (432, 46794960), (480, 42115464), (486, 41595520), (515, 39253248), (540, 37435968), (576, 35096220), (618, 32711040), (631, 32037120), (640, 31586598), (648, 31196640), (720, 28076976), (768, 26322165), (810, 24957312), (824, 24533280), (864, 23397480), (927, 21807360), (960, 21057732), (972, 20797760), (1030, 19626624), (1080, 18717984), (1152, 17548110), (1215, 16638208), (1236, 16355520), (1262, 16018560), (1280, 15793299), (1296, 15598320), (1440, 14038488), (1545, 13084416), (1620, 12478656), (1648, 12266640), (1728, 11698740), (1854, 10903680), (1893, 10679040), (1920, 10528866), (1944, 10398880), (2060, 9813312), (2160, 9358992), (2304, 8774055), (2430, 8319104), (2472, 8177760), (2524, 8009280), (2592, 7799160), (2781, 7269120), (2880, 7019244), (3090, 6542208), (3155, 6407424), (3240, 6239328), (3296, 6133320), (3456, 5849370), (3708, 5451840), (3786, 5339520), (3840, 5264433), (3888, 5199440), (4120, 4906656), (4320, 4679496), (4635, 4361472), (4860, 4159552), (4944, 4088880), (5048, 4004640), (5184, 3899580), (5562, 3634560), (5679, 3559680), (5760, 3509622), (6180, 3271104), (6310, 3203712), (6480, 3119664), (6592, 3066660), (6912, 2924685), (7416, 2725920), (7572, 2669760), (7776, 2599720), (8240, 2453328), (8343, 2423040), (8640, 2339748), (9270, 2180736), (9465, 2135808), (9720, 2079776), (9888, 2044440), (10096, 2002320), (10368, 1949790), (11124, 1817280), (11358, 1779840), (11520, 1754811), (12360, 1635552), (12620, 1601856), (12960, 1559832), (13184, 1533330), (13905, 1453824), (14832, 1362960), (15144, 1334880), (15552, 1299860), (16480, 1226664), (16686, 1211520), (17037, 1186560), (17280, 1169874), (18540, 1090368), (18930, 1067904), (19440, 1039888), (19776, 1022220), (20192, 1001160), (20736, 974895), (22248, 908640), (22716, 889920), (24720, 817776), (25029, 807680), (25240, 800928), (25920, 779916), (26368, 766665), (27810, 726912), (28395, 711936), (29664, 681480), (30288, 667440), (31104, 649930), (32960, 613332), (33372, 605760), (34074, 593280), (34560, 584937), (37080, 545184), (37860, 533952), (38880, 519944), (39552, 511110), (40384, 500580), (41715, 484608), (44496, 454320), (45432, 444960), (49440, 408888), (50058, 403840), (50480, 400464), (51111, 395520), (51840, 389958), (55620, 363456), (56790, 355968), (59328, 340740), (60576, 333720), (62208, 324965), (64993, 311040), (65920, 306666), (66744, 302880), (68148, 296640), (74160, 272592), (75720, 266976), (77760, 259972), (79104, 255555), (80768, 250290), (83430, 242304), (85185, 237312), (88992, 227160), (90864, 222480), (98880, 204444), (100116, 201920), (100960, 200232), (102222, 197760), (103680, 194979), (111240, 181728), (113580, 177984), (118656, 170370), (121152, 166860), (125145, 161536), (129986, 155520), (131840, 153333), (133488, 151440), (136296, 148320)]