1721321280

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:268

約数の個数: 560

約数和(自身を含む): 7169627520

約数和(自身を除く): 5448306240

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, 53, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 106, 108, 112, 120, 126, 135, 140, 144, 159, 160, 162, 168, 179, 180, 189, 192, 210, 212, 216, 224, 240, 252, 265, 270, 280, 288, 315, 318, 320, 324, 336, 358, 360, 371, 378, 405, 420, 424, 432, 448, 477, 480, 504, 530, 537, 540, 560, 567, 576, 630, 636, 648, 672, 716, 720, 742, 756, 795, 810, 840, 848, 864, 895, 945, 954, 960, 1008, 1060, 1074, 1080, 1113, 1120, 1134, 1253, 1260, 1272, 1296, 1344, 1431, 1432, 1440, 1484, 1512, 1590, 1611, 1620, 1680, 1696, 1728, 1790, 1855, 1890, 1908, 2016, 2120, 2148, 2160, 2226, 2240, 2268, 2385, 2506, 2520, 2544, 2592, 2685, 2835, 2862, 2864, 2880, 2968, 3024, 3180, 3222, 3240, 3339, 3360, 3392, 3580, 3710, 3759, 3780, 3816, 4032, 4240, 4293, 4296, 4320, 4452, 4536, 4770, 4833, 5012, 5040, 5088, 5184, 5370, 5565, 5670, 5724, 5728, 5936, 6048, 6265, 6360, 6444, 6480, 6678, 6720, 7155, 7160, 7420, 7518, 7560, 7632, 8055, 8480, 8586, 8592, 8640, 8904, 9072, 9487, 9540, 9666, 10017, 10024, 10080, 10176, 10740, 11130, 11277, 11340, 11448, 11456, 11872, 12096, 12530, 12720, 12888, 12960, 13356, 14310, 14320, 14499, 14840, 15036, 15120, 15264, 16110, 16695, 16960, 17172, 17184, 17808, 18144, 18795, 18974, 19080, 19332, 20034, 20048, 20160, 21465, 21480, 22260, 22554, 22680, 22896, 23744, 24165, 25060, 25440, 25776, 25920, 26712, 28461, 28620, 28640, 28998, 29680, 30051, 30072, 30240, 30528, 32220, 33390, 33831, 34344, 34368, 35616, 36288, 37590, 37948, 38160, 38664, 40068, 40096, 42930, 42960, 44520, 45108, 45360, 45792, 47435, 48330, 50085, 50120, 50880, 51552, 53424, 56385, 56922, 57240, 57280, 57996, 59360, 60102, 60144, 60480, 64440, 66409, 66780, 67662, 68688, 71232, 72495, 75180, 75896, 76320, 77328, 80136, 80192, 85383, 85860, 85920, 89040, 90216, 90720, 91584, 94870, 96660, 100170, 100240, 101493, 103104, 106848, 112770, 113844, 114480, 115992, 118720, 120204, 120288, 128880, 132818, 133560, 135324, 137376, 142305, 144990, 150255, 150360, 151792, 152640, 154656, 160272, 169155, 170766, 171720, 171840, 178080, 180432, 181440, 189740, 193320, 199227, 200340, 200480, 202986, 213696, 225540, 227688, 228960, 231984, 240408, 240576, 256149, 257760, 265636, 267120, 270648, 274752, 284610, 289980, 300510, 300720, 303584, 309312, 320544, 332045, 338310, 341532, 343440, 356160, 360864, 379480, 386640, 398454, 400680, 400960, 405972, 426915, 451080, 455376, 457920, 463968, 480816, 507465, 512298, 515520, 531272, 534240, 541296, 569220, 579960, 597681, 601020, 601440, 607168, 641088, 664090, 676620, 683064, 686880, 721728, 758960, 768447, 773280, 796908, 801360, 811944, 853830, 902160, 910752, 927936, 961632, 996135, 1014930, 1024596, 1062544, 1068480, 1082592, 1138440, 1159920, 1195362, 1202040, 1202880, 1280745, 1328180, 1353240, 1366128, 1373760, 1517920, 1536894, 1546560, 1593816, 1602720, 1623888, 1707660, 1793043, 1804320, 1821504, 1923264, 1992270, 2029860, 2049192, 2125088, 2165184, 2276880, 2319840, 2390724, 2404080, 2561490, 2656360, 2706480, 2732256, 2988405, 3035840, 3073788, 3187632, 3205440, 3247776, 3415320, 3586086, 3608640, 3842235, 3984540, 4059720, 4098384, 4250176, 4553760, 4639680, 4781448, 4808160, 5122980, 5312720, 5379129, 5412960, 5464512, 5976810, 6147576, 6375264, 6495552, 6830640, 7172172, 7684470, 7969080, 8119440, 8196768, 8965215, 9107520, 9562896, 9616320, 10245960, 10625440, 10758258, 10825920, 11953620, 12295152, 12750528, 13661280, 14344344, 15368940, 15938160, 16238880, 16393536, 17930430, 19125792, 20491920, 21250880, 21516516, 23907240, 24590304, 26895645, 27322560, 28688688, 30737880, 31876320, 32477760, 35860860, 38251584, 40983840, 43033032, 47814480, 49180608, 53791290, 57377376, 61475760, 63752640, 71721720, 81967680, 86066064, 95628960, 107582580, 114754752, 122951520, 143443440, 172132128, 191257920, 215165160, 245903040, 286886880, 344264256, 430330320, 573773760, 860660640, 1721321280]

約数ペア:

[(1, 1721321280), (2, 860660640), (3, 573773760), (4, 430330320), (5, 344264256), (6, 286886880), (7, 245903040), (8, 215165160), (9, 191257920), (10, 172132128), (12, 143443440), (14, 122951520), (15, 114754752), (16, 107582580), (18, 95628960), (20, 86066064), (21, 81967680), (24, 71721720), (27, 63752640), (28, 61475760), (30, 57377376), (32, 53791290), (35, 49180608), (36, 47814480), (40, 43033032), (42, 40983840), (45, 38251584), (48, 35860860), (53, 32477760), (54, 31876320), (56, 30737880), (60, 28688688), (63, 27322560), (64, 26895645), (70, 24590304), (72, 23907240), (80, 21516516), (81, 21250880), (84, 20491920), (90, 19125792), (96, 17930430), (105, 16393536), (106, 16238880), (108, 15938160), (112, 15368940), (120, 14344344), (126, 13661280), (135, 12750528), (140, 12295152), (144, 11953620), (159, 10825920), (160, 10758258), (162, 10625440), (168, 10245960), (179, 9616320), (180, 9562896), (189, 9107520), (192, 8965215), (210, 8196768), (212, 8119440), (216, 7969080), (224, 7684470), (240, 7172172), (252, 6830640), (265, 6495552), (270, 6375264), (280, 6147576), (288, 5976810), (315, 5464512), (318, 5412960), (320, 5379129), (324, 5312720), (336, 5122980), (358, 4808160), (360, 4781448), (371, 4639680), (378, 4553760), (405, 4250176), (420, 4098384), (424, 4059720), (432, 3984540), (448, 3842235), (477, 3608640), (480, 3586086), (504, 3415320), (530, 3247776), (537, 3205440), (540, 3187632), (560, 3073788), (567, 3035840), (576, 2988405), (630, 2732256), (636, 2706480), (648, 2656360), (672, 2561490), (716, 2404080), (720, 2390724), (742, 2319840), (756, 2276880), (795, 2165184), (810, 2125088), (840, 2049192), (848, 2029860), (864, 1992270), (895, 1923264), (945, 1821504), (954, 1804320), (960, 1793043), (1008, 1707660), (1060, 1623888), (1074, 1602720), (1080, 1593816), (1113, 1546560), (1120, 1536894), (1134, 1517920), (1253, 1373760), (1260, 1366128), (1272, 1353240), (1296, 1328180), (1344, 1280745), (1431, 1202880), (1432, 1202040), (1440, 1195362), (1484, 1159920), (1512, 1138440), (1590, 1082592), (1611, 1068480), (1620, 1062544), (1680, 1024596), (1696, 1014930), (1728, 996135), (1790, 961632), (1855, 927936), (1890, 910752), (1908, 902160), (2016, 853830), (2120, 811944), (2148, 801360), (2160, 796908), (2226, 773280), (2240, 768447), (2268, 758960), (2385, 721728), (2506, 686880), (2520, 683064), (2544, 676620), (2592, 664090), (2685, 641088), (2835, 607168), (2862, 601440), (2864, 601020), (2880, 597681), (2968, 579960), (3024, 569220), (3180, 541296), (3222, 534240), (3240, 531272), (3339, 515520), (3360, 512298), (3392, 507465), (3580, 480816), (3710, 463968), (3759, 457920), (3780, 455376), (3816, 451080), (4032, 426915), (4240, 405972), (4293, 400960), (4296, 400680), (4320, 398454), (4452, 386640), (4536, 379480), (4770, 360864), (4833, 356160), (5012, 343440), (5040, 341532), (5088, 338310), (5184, 332045), (5370, 320544), (5565, 309312), (5670, 303584), (5724, 300720), (5728, 300510), (5936, 289980), (6048, 284610), (6265, 274752), (6360, 270648), (6444, 267120), (6480, 265636), (6678, 257760), (6720, 256149), (7155, 240576), (7160, 240408), (7420, 231984), (7518, 228960), (7560, 227688), (7632, 225540), (8055, 213696), (8480, 202986), (8586, 200480), (8592, 200340), (8640, 199227), (8904, 193320), (9072, 189740), (9487, 181440), (9540, 180432), (9666, 178080), (10017, 171840), (10024, 171720), (10080, 170766), (10176, 169155), (10740, 160272), (11130, 154656), (11277, 152640), (11340, 151792), (11448, 150360), (11456, 150255), (11872, 144990), (12096, 142305), (12530, 137376), (12720, 135324), (12888, 133560), (12960, 132818), (13356, 128880), (14310, 120288), (14320, 120204), (14499, 118720), (14840, 115992), (15036, 114480), (15120, 113844), (15264, 112770), (16110, 106848), (16695, 103104), (16960, 101493), (17172, 100240), (17184, 100170), (17808, 96660), (18144, 94870), (18795, 91584), (18974, 90720), (19080, 90216), (19332, 89040), (20034, 85920), (20048, 85860), (20160, 85383), (21465, 80192), (21480, 80136), (22260, 77328), (22554, 76320), (22680, 75896), (22896, 75180), (23744, 72495), (24165, 71232), (25060, 68688), (25440, 67662), (25776, 66780), (25920, 66409), (26712, 64440), (28461, 60480), (28620, 60144), (28640, 60102), (28998, 59360), (29680, 57996), (30051, 57280), (30072, 57240), (30240, 56922), (30528, 56385), (32220, 53424), (33390, 51552), (33831, 50880), (34344, 50120), (34368, 50085), (35616, 48330), (36288, 47435), (37590, 45792), (37948, 45360), (38160, 45108), (38664, 44520), (40068, 42960), (40096, 42930)]