1221181920

素因数分解:

$2^5\times 3^5\times 5^1\times 7^2\times {\mathrm{641}}^1$

素因数の和:685

約数の個数: 432

約数和(自身を含む): 5035041648

約数和(自身を除く): 3813859728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 162, 168, 180, 189, 196, 210, 216, 224, 240, 243, 245, 252, 270, 280, 288, 294, 315, 324, 336, 360, 378, 392, 405, 420, 432, 441, 480, 486, 490, 504, 540, 560, 567, 588, 630, 641, 648, 672, 720, 735, 756, 784, 810, 840, 864, 882, 945, 972, 980, 1008, 1080, 1120, 1134, 1176, 1215, 1260, 1282, 1296, 1323, 1440, 1470, 1512, 1568, 1620, 1680, 1701, 1764, 1890, 1923, 1944, 1960, 2016, 2160, 2205, 2268, 2352, 2430, 2520, 2564, 2592, 2646, 2835, 2940, 3024, 3205, 3240, 3360, 3402, 3528, 3780, 3846, 3888, 3920, 3969, 4320, 4410, 4487, 4536, 4704, 4860, 5040, 5128, 5292, 5670, 5769, 5880, 6048, 6410, 6480, 6615, 6804, 7056, 7560, 7692, 7776, 7840, 7938, 8505, 8820, 8974, 9072, 9615, 9720, 10080, 10256, 10584, 11340, 11538, 11760, 11907, 12820, 12960, 13230, 13461, 13608, 14112, 15120, 15384, 15876, 17010, 17307, 17640, 17948, 18144, 19230, 19440, 19845, 20512, 21168, 22435, 22680, 23076, 23520, 23814, 25640, 26460, 26922, 27216, 28845, 30240, 30768, 31409, 31752, 34020, 34614, 35280, 35896, 38460, 38880, 39690, 40383, 42336, 44870, 45360, 46152, 47628, 51280, 51921, 52920, 53844, 54432, 57690, 59535, 61536, 62818, 63504, 67305, 68040, 69228, 70560, 71792, 76920, 79380, 80766, 86535, 89740, 90720, 92304, 94227, 95256, 102560, 103842, 105840, 107688, 115380, 119070, 121149, 125636, 127008, 134610, 136080, 138456, 143584, 153840, 155763, 157045, 158760, 161532, 173070, 179480, 184608, 188454, 190512, 201915, 207684, 211680, 215376, 230760, 238140, 242298, 251272, 259605, 269220, 272160, 276912, 282681, 307680, 311526, 314090, 317520, 323064, 346140, 358960, 363447, 376908, 381024, 403830, 415368, 430752, 461520, 471135, 476280, 484596, 502544, 519210, 538440, 553824, 565362, 605745, 623052, 628180, 635040, 646128, 692280, 717920, 726894, 753816, 778815, 807660, 830736, 848043, 923040, 942270, 952560, 969192, 1005088, 1038420, 1076880, 1090341, 1130724, 1211490, 1246104, 1256360, 1292256, 1384560, 1413405, 1453788, 1507632, 1557630, 1615320, 1661472, 1696086, 1817235, 1884540, 1905120, 1938384, 2076840, 2153760, 2180682, 2261448, 2422980, 2492208, 2512720, 2544129, 2769120, 2826810, 2907576, 3015264, 3115260, 3230640, 3392172, 3634470, 3769080, 3876768, 4153680, 4240215, 4361364, 4522896, 4845960, 4984416, 5025440, 5088258, 5451705, 5653620, 5815152, 6230520, 6461280, 6784344, 7268940, 7538160, 7632387, 8307360, 8480430, 8722728, 9045792, 9691920, 10176516, 10903410, 11307240, 11630304, 12461040, 12720645, 13568688, 14537880, 15076320, 15264774, 16960860, 17445456, 19383840, 20353032, 21806820, 22614480, 24922080, 25441290, 27137376, 29075760, 30529548, 33921720, 34890912, 38161935, 40706064, 43613640, 45228960, 50882580, 58151520, 61059096, 67843440, 76323870, 81412128, 87227280, 101765160, 122118192, 135686880, 152647740, 174454560, 203530320, 244236384, 305295480, 407060640, 610590960, 1221181920]

約数ペア:

[(1, 1221181920), (2, 610590960), (3, 407060640), (4, 305295480), (5, 244236384), (6, 203530320), (7, 174454560), (8, 152647740), (9, 135686880), (10, 122118192), (12, 101765160), (14, 87227280), (15, 81412128), (16, 76323870), (18, 67843440), (20, 61059096), (21, 58151520), (24, 50882580), (27, 45228960), (28, 43613640), (30, 40706064), (32, 38161935), (35, 34890912), (36, 33921720), (40, 30529548), (42, 29075760), (45, 27137376), (48, 25441290), (49, 24922080), (54, 22614480), (56, 21806820), (60, 20353032), (63, 19383840), (70, 17445456), (72, 16960860), (80, 15264774), (81, 15076320), (84, 14537880), (90, 13568688), (96, 12720645), (98, 12461040), (105, 11630304), (108, 11307240), (112, 10903410), (120, 10176516), (126, 9691920), (135, 9045792), (140, 8722728), (144, 8480430), (147, 8307360), (160, 7632387), (162, 7538160), (168, 7268940), (180, 6784344), (189, 6461280), (196, 6230520), (210, 5815152), (216, 5653620), (224, 5451705), (240, 5088258), (243, 5025440), (245, 4984416), (252, 4845960), (270, 4522896), (280, 4361364), (288, 4240215), (294, 4153680), (315, 3876768), (324, 3769080), (336, 3634470), (360, 3392172), (378, 3230640), (392, 3115260), (405, 3015264), (420, 2907576), (432, 2826810), (441, 2769120), (480, 2544129), (486, 2512720), (490, 2492208), (504, 2422980), (540, 2261448), (560, 2180682), (567, 2153760), (588, 2076840), (630, 1938384), (641, 1905120), (648, 1884540), (672, 1817235), (720, 1696086), (735, 1661472), (756, 1615320), (784, 1557630), (810, 1507632), (840, 1453788), (864, 1413405), (882, 1384560), (945, 1292256), (972, 1256360), (980, 1246104), (1008, 1211490), (1080, 1130724), (1120, 1090341), (1134, 1076880), (1176, 1038420), (1215, 1005088), (1260, 969192), (1282, 952560), (1296, 942270), (1323, 923040), (1440, 848043), (1470, 830736), (1512, 807660), (1568, 778815), (1620, 753816), (1680, 726894), (1701, 717920), (1764, 692280), (1890, 646128), (1923, 635040), (1944, 628180), (1960, 623052), (2016, 605745), (2160, 565362), (2205, 553824), (2268, 538440), (2352, 519210), (2430, 502544), (2520, 484596), (2564, 476280), (2592, 471135), (2646, 461520), (2835, 430752), (2940, 415368), (3024, 403830), (3205, 381024), (3240, 376908), (3360, 363447), (3402, 358960), (3528, 346140), (3780, 323064), (3846, 317520), (3888, 314090), (3920, 311526), (3969, 307680), (4320, 282681), (4410, 276912), (4487, 272160), (4536, 269220), (4704, 259605), (4860, 251272), (5040, 242298), (5128, 238140), (5292, 230760), (5670, 215376), (5769, 211680), (5880, 207684), (6048, 201915), (6410, 190512), (6480, 188454), (6615, 184608), (6804, 179480), (7056, 173070), (7560, 161532), (7692, 158760), (7776, 157045), (7840, 155763), (7938, 153840), (8505, 143584), (8820, 138456), (8974, 136080), (9072, 134610), (9615, 127008), (9720, 125636), (10080, 121149), (10256, 119070), (10584, 115380), (11340, 107688), (11538, 105840), (11760, 103842), (11907, 102560), (12820, 95256), (12960, 94227), (13230, 92304), (13461, 90720), (13608, 89740), (14112, 86535), (15120, 80766), (15384, 79380), (15876, 76920), (17010, 71792), (17307, 70560), (17640, 69228), (17948, 68040), (18144, 67305), (19230, 63504), (19440, 62818), (19845, 61536), (20512, 59535), (21168, 57690), (22435, 54432), (22680, 53844), (23076, 52920), (23520, 51921), (23814, 51280), (25640, 47628), (26460, 46152), (26922, 45360), (27216, 44870), (28845, 42336), (30240, 40383), (30768, 39690), (31409, 38880), (31752, 38460), (34020, 35896), (34614, 35280)]