19902960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1$

素因数の和:396

約数の個数: 240

約数和(自身を含む): 83566080

約数和(自身を除く): 63663120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 359, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 718, 720, 770, 792, 840, 880, 924, 990, 1008, 1077, 1155, 1232, 1260, 1320, 1386, 1436, 1540, 1584, 1680, 1795, 1848, 1980, 2154, 2310, 2513, 2520, 2640, 2772, 2872, 3080, 3231, 3465, 3590, 3696, 3949, 3960, 4308, 4620, 5026, 5040, 5385, 5544, 5744, 6160, 6462, 6930, 7180, 7539, 7898, 7920, 8616, 9240, 10052, 10770, 11088, 11847, 12565, 12924, 13860, 14360, 15078, 15796, 16155, 17232, 18480, 19745, 20104, 21540, 22617, 23694, 25130, 25848, 27643, 27720, 28720, 30156, 31592, 32310, 35541, 37695, 39490, 40208, 43080, 45234, 47388, 50260, 51696, 55286, 55440, 59235, 60312, 63184, 64620, 71082, 75390, 78980, 82929, 86160, 90468, 94776, 100520, 110572, 113085, 118470, 120624, 129240, 138215, 142164, 150780, 157960, 165858, 177705, 180936, 189552, 201040, 221144, 226170, 236940, 248787, 258480, 276430, 284328, 301560, 315920, 331716, 355410, 361872, 414645, 442288, 452340, 473880, 497574, 552860, 568656, 603120, 663432, 710820, 829290, 904680, 947760, 995148, 1105720, 1243935, 1326864, 1421640, 1658580, 1809360, 1990296, 2211440, 2487870, 2843280, 3317160, 3980592, 4975740, 6634320, 9951480, 19902960]

約数ペア:

[(1, 19902960), (2, 9951480), (3, 6634320), (4, 4975740), (5, 3980592), (6, 3317160), (7, 2843280), (8, 2487870), (9, 2211440), (10, 1990296), (11, 1809360), (12, 1658580), (14, 1421640), (15, 1326864), (16, 1243935), (18, 1105720), (20, 995148), (21, 947760), (22, 904680), (24, 829290), (28, 710820), (30, 663432), (33, 603120), (35, 568656), (36, 552860), (40, 497574), (42, 473880), (44, 452340), (45, 442288), (48, 414645), (55, 361872), (56, 355410), (60, 331716), (63, 315920), (66, 301560), (70, 284328), (72, 276430), (77, 258480), (80, 248787), (84, 236940), (88, 226170), (90, 221144), (99, 201040), (105, 189552), (110, 180936), (112, 177705), (120, 165858), (126, 157960), (132, 150780), (140, 142164), (144, 138215), (154, 129240), (165, 120624), (168, 118470), (176, 113085), (180, 110572), (198, 100520), (210, 94776), (220, 90468), (231, 86160), (240, 82929), (252, 78980), (264, 75390), (280, 71082), (308, 64620), (315, 63184), (330, 60312), (336, 59235), (359, 55440), (360, 55286), (385, 51696), (396, 50260), (420, 47388), (440, 45234), (462, 43080), (495, 40208), (504, 39490), (528, 37695), (560, 35541), (616, 32310), (630, 31592), (660, 30156), (693, 28720), (718, 27720), (720, 27643), (770, 25848), (792, 25130), (840, 23694), (880, 22617), (924, 21540), (990, 20104), (1008, 19745), (1077, 18480), (1155, 17232), (1232, 16155), (1260, 15796), (1320, 15078), (1386, 14360), (1436, 13860), (1540, 12924), (1584, 12565), (1680, 11847), (1795, 11088), (1848, 10770), (1980, 10052), (2154, 9240), (2310, 8616), (2513, 7920), (2520, 7898), (2640, 7539), (2772, 7180), (2872, 6930), (3080, 6462), (3231, 6160), (3465, 5744), (3590, 5544), (3696, 5385), (3949, 5040), (3960, 5026), (4308, 4620)]