20549760

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 256

約数和(自身を含む): 82252800

約数和(自身を除く): 61703040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 128, 132, 139, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 278, 280, 308, 320, 330, 336, 352, 384, 385, 417, 420, 440, 448, 462, 480, 528, 556, 560, 616, 640, 660, 672, 695, 704, 770, 834, 840, 880, 896, 924, 960, 973, 1056, 1112, 1120, 1155, 1232, 1320, 1344, 1390, 1408, 1529, 1540, 1668, 1680, 1760, 1848, 1920, 1946, 2085, 2112, 2224, 2240, 2310, 2464, 2640, 2688, 2780, 2919, 3058, 3080, 3336, 3360, 3520, 3696, 3892, 4170, 4224, 4448, 4480, 4587, 4620, 4865, 4928, 5280, 5560, 5838, 6116, 6160, 6672, 6720, 7040, 7392, 7645, 7784, 8340, 8896, 9174, 9240, 9730, 9856, 10560, 10703, 11120, 11676, 12232, 12320, 13344, 13440, 14595, 14784, 15290, 15568, 16680, 17792, 18348, 18480, 19460, 21120, 21406, 22240, 22935, 23352, 24464, 24640, 26688, 29190, 29568, 30580, 31136, 32109, 33360, 36696, 36960, 38920, 42812, 44480, 45870, 46704, 48928, 49280, 53376, 53515, 58380, 61160, 62272, 64218, 66720, 73392, 73920, 77840, 85624, 88960, 91740, 93408, 97856, 107030, 116760, 122320, 124544, 128436, 133440, 146784, 147840, 155680, 160545, 171248, 183480, 186816, 195712, 214060, 233520, 244640, 256872, 266880, 293568, 311360, 321090, 342496, 366960, 373632, 428120, 467040, 489280, 513744, 587136, 622720, 642180, 684992, 733920, 856240, 934080, 978560, 1027488, 1284360, 1369984, 1467840, 1712480, 1868160, 2054976, 2568720, 2935680, 3424960, 4109952, 5137440, 6849920, 10274880, 20549760]

約数ペア:

[(1, 20549760), (2, 10274880), (3, 6849920), (4, 5137440), (5, 4109952), (6, 3424960), (7, 2935680), (8, 2568720), (10, 2054976), (11, 1868160), (12, 1712480), (14, 1467840), (15, 1369984), (16, 1284360), (20, 1027488), (21, 978560), (22, 934080), (24, 856240), (28, 733920), (30, 684992), (32, 642180), (33, 622720), (35, 587136), (40, 513744), (42, 489280), (44, 467040), (48, 428120), (55, 373632), (56, 366960), (60, 342496), (64, 321090), (66, 311360), (70, 293568), (77, 266880), (80, 256872), (84, 244640), (88, 233520), (96, 214060), (105, 195712), (110, 186816), (112, 183480), (120, 171248), (128, 160545), (132, 155680), (139, 147840), (140, 146784), (154, 133440), (160, 128436), (165, 124544), (168, 122320), (176, 116760), (192, 107030), (210, 97856), (220, 93408), (224, 91740), (231, 88960), (240, 85624), (264, 77840), (278, 73920), (280, 73392), (308, 66720), (320, 64218), (330, 62272), (336, 61160), (352, 58380), (384, 53515), (385, 53376), (417, 49280), (420, 48928), (440, 46704), (448, 45870), (462, 44480), (480, 42812), (528, 38920), (556, 36960), (560, 36696), (616, 33360), (640, 32109), (660, 31136), (672, 30580), (695, 29568), (704, 29190), (770, 26688), (834, 24640), (840, 24464), (880, 23352), (896, 22935), (924, 22240), (960, 21406), (973, 21120), (1056, 19460), (1112, 18480), (1120, 18348), (1155, 17792), (1232, 16680), (1320, 15568), (1344, 15290), (1390, 14784), (1408, 14595), (1529, 13440), (1540, 13344), (1668, 12320), (1680, 12232), (1760, 11676), (1848, 11120), (1920, 10703), (1946, 10560), (2085, 9856), (2112, 9730), (2224, 9240), (2240, 9174), (2310, 8896), (2464, 8340), (2640, 7784), (2688, 7645), (2780, 7392), (2919, 7040), (3058, 6720), (3080, 6672), (3336, 6160), (3360, 6116), (3520, 5838), (3696, 5560), (3892, 5280), (4170, 4928), (4224, 4865), (4448, 4620), (4480, 4587)]