21178080

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1$

素因数の和:230

約数の個数: 288

約数和(自身を含む): 90574848

約数和(自身を除く): 69396768

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, 32, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 160, 165, 168, 176, 180, 191, 198, 210, 220, 224, 231, 240, 252, 264, 280, 288, 308, 315, 330, 336, 352, 360, 382, 385, 396, 420, 440, 462, 480, 495, 504, 528, 560, 573, 616, 630, 660, 672, 693, 720, 764, 770, 792, 840, 880, 924, 955, 990, 1008, 1056, 1120, 1146, 1155, 1232, 1260, 1320, 1337, 1386, 1440, 1528, 1540, 1584, 1680, 1719, 1760, 1848, 1910, 1980, 2016, 2101, 2292, 2310, 2464, 2520, 2640, 2674, 2772, 2865, 3056, 3080, 3168, 3360, 3438, 3465, 3696, 3820, 3960, 4011, 4202, 4584, 4620, 5040, 5280, 5348, 5544, 5730, 6112, 6160, 6303, 6685, 6876, 6930, 7392, 7640, 7920, 8022, 8404, 8595, 9168, 9240, 10080, 10505, 10696, 11088, 11460, 12033, 12320, 12606, 13370, 13752, 13860, 14707, 15280, 15840, 16044, 16808, 17190, 18336, 18480, 18909, 20055, 21010, 21392, 22176, 22920, 24066, 25212, 26740, 27504, 27720, 29414, 30560, 31515, 32088, 33616, 34380, 36960, 37818, 40110, 42020, 42784, 44121, 45840, 48132, 50424, 53480, 55008, 55440, 58828, 60165, 63030, 64176, 67232, 68760, 73535, 75636, 80220, 84040, 88242, 91680, 94545, 96264, 100848, 106960, 110880, 117656, 120330, 126060, 128352, 132363, 137520, 147070, 151272, 160440, 168080, 176484, 189090, 192528, 201696, 213920, 220605, 235312, 240660, 252120, 264726, 275040, 294140, 302544, 320880, 336160, 352968, 378180, 385056, 441210, 470624, 481320, 504240, 529452, 588280, 605088, 641760, 661815, 705936, 756360, 882420, 962640, 1008480, 1058904, 1176560, 1323630, 1411872, 1512720, 1764840, 1925280, 2117808, 2353120, 2647260, 3025440, 3529680, 4235616, 5294520, 7059360, 10589040, 21178080]

約数ペア:

[(1, 21178080), (2, 10589040), (3, 7059360), (4, 5294520), (5, 4235616), (6, 3529680), (7, 3025440), (8, 2647260), (9, 2353120), (10, 2117808), (11, 1925280), (12, 1764840), (14, 1512720), (15, 1411872), (16, 1323630), (18, 1176560), (20, 1058904), (21, 1008480), (22, 962640), (24, 882420), (28, 756360), (30, 705936), (32, 661815), (33, 641760), (35, 605088), (36, 588280), (40, 529452), (42, 504240), (44, 481320), (45, 470624), (48, 441210), (55, 385056), (56, 378180), (60, 352968), (63, 336160), (66, 320880), (70, 302544), (72, 294140), (77, 275040), (80, 264726), (84, 252120), (88, 240660), (90, 235312), (96, 220605), (99, 213920), (105, 201696), (110, 192528), (112, 189090), (120, 176484), (126, 168080), (132, 160440), (140, 151272), (144, 147070), (154, 137520), (160, 132363), (165, 128352), (168, 126060), (176, 120330), (180, 117656), (191, 110880), (198, 106960), (210, 100848), (220, 96264), (224, 94545), (231, 91680), (240, 88242), (252, 84040), (264, 80220), (280, 75636), (288, 73535), (308, 68760), (315, 67232), (330, 64176), (336, 63030), (352, 60165), (360, 58828), (382, 55440), (385, 55008), (396, 53480), (420, 50424), (440, 48132), (462, 45840), (480, 44121), (495, 42784), (504, 42020), (528, 40110), (560, 37818), (573, 36960), (616, 34380), (630, 33616), (660, 32088), (672, 31515), (693, 30560), (720, 29414), (764, 27720), (770, 27504), (792, 26740), (840, 25212), (880, 24066), (924, 22920), (955, 22176), (990, 21392), (1008, 21010), (1056, 20055), (1120, 18909), (1146, 18480), (1155, 18336), (1232, 17190), (1260, 16808), (1320, 16044), (1337, 15840), (1386, 15280), (1440, 14707), (1528, 13860), (1540, 13752), (1584, 13370), (1680, 12606), (1719, 12320), (1760, 12033), (1848, 11460), (1910, 11088), (1980, 10696), (2016, 10505), (2101, 10080), (2292, 9240), (2310, 9168), (2464, 8595), (2520, 8404), (2640, 8022), (2674, 7920), (2772, 7640), (2865, 7392), (3056, 6930), (3080, 6876), (3168, 6685), (3360, 6303), (3438, 6160), (3465, 6112), (3696, 5730), (3820, 5544), (3960, 5348), (4011, 5280), (4202, 5040), (4584, 4620)]