28237440

素因数分解:

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

素因数の和:231

約数の個数: 256

約数和(自身を含む): 112803840

約数和(自身を除く): 84566400

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, 140, 154, 160, 165, 168, 176, 191, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 382, 384, 385, 420, 440, 448, 462, 480, 528, 560, 573, 616, 640, 660, 672, 704, 764, 770, 840, 880, 896, 924, 955, 960, 1056, 1120, 1146, 1155, 1232, 1320, 1337, 1344, 1408, 1528, 1540, 1680, 1760, 1848, 1910, 1920, 2101, 2112, 2240, 2292, 2310, 2464, 2640, 2674, 2688, 2865, 3056, 3080, 3360, 3520, 3696, 3820, 4011, 4202, 4224, 4480, 4584, 4620, 4928, 5280, 5348, 5730, 6112, 6160, 6303, 6685, 6720, 7040, 7392, 7640, 8022, 8404, 9168, 9240, 9856, 10505, 10560, 10696, 11460, 12224, 12320, 12606, 13370, 13440, 14707, 14784, 15280, 16044, 16808, 18336, 18480, 20055, 21010, 21120, 21392, 22920, 24448, 24640, 25212, 26740, 29414, 29568, 30560, 31515, 32088, 33616, 36672, 36960, 40110, 42020, 42784, 44121, 45840, 49280, 50424, 53480, 58828, 61120, 63030, 64176, 67232, 73344, 73535, 73920, 80220, 84040, 85568, 88242, 91680, 100848, 106960, 117656, 122240, 126060, 128352, 134464, 147070, 147840, 160440, 168080, 171136, 176484, 183360, 201696, 213920, 220605, 235312, 252120, 256704, 268928, 294140, 320880, 336160, 352968, 366720, 403392, 427840, 441210, 470624, 504240, 513408, 588280, 641760, 672320, 705936, 806784, 855680, 882420, 941248, 1008480, 1176560, 1283520, 1344640, 1411872, 1764840, 1882496, 2016960, 2353120, 2567040, 2823744, 3529680, 4033920, 4706240, 5647488, 7059360, 9412480, 14118720, 28237440]

約数ペア:

[(1, 28237440), (2, 14118720), (3, 9412480), (4, 7059360), (5, 5647488), (6, 4706240), (7, 4033920), (8, 3529680), (10, 2823744), (11, 2567040), (12, 2353120), (14, 2016960), (15, 1882496), (16, 1764840), (20, 1411872), (21, 1344640), (22, 1283520), (24, 1176560), (28, 1008480), (30, 941248), (32, 882420), (33, 855680), (35, 806784), (40, 705936), (42, 672320), (44, 641760), (48, 588280), (55, 513408), (56, 504240), (60, 470624), (64, 441210), (66, 427840), (70, 403392), (77, 366720), (80, 352968), (84, 336160), (88, 320880), (96, 294140), (105, 268928), (110, 256704), (112, 252120), (120, 235312), (128, 220605), (132, 213920), (140, 201696), (154, 183360), (160, 176484), (165, 171136), (168, 168080), (176, 160440), (191, 147840), (192, 147070), (210, 134464), (220, 128352), (224, 126060), (231, 122240), (240, 117656), (264, 106960), (280, 100848), (308, 91680), (320, 88242), (330, 85568), (336, 84040), (352, 80220), (382, 73920), (384, 73535), (385, 73344), (420, 67232), (440, 64176), (448, 63030), (462, 61120), (480, 58828), (528, 53480), (560, 50424), (573, 49280), (616, 45840), (640, 44121), (660, 42784), (672, 42020), (704, 40110), (764, 36960), (770, 36672), (840, 33616), (880, 32088), (896, 31515), (924, 30560), (955, 29568), (960, 29414), (1056, 26740), (1120, 25212), (1146, 24640), (1155, 24448), (1232, 22920), (1320, 21392), (1337, 21120), (1344, 21010), (1408, 20055), (1528, 18480), (1540, 18336), (1680, 16808), (1760, 16044), (1848, 15280), (1910, 14784), (1920, 14707), (2101, 13440), (2112, 13370), (2240, 12606), (2292, 12320), (2310, 12224), (2464, 11460), (2640, 10696), (2674, 10560), (2688, 10505), (2865, 9856), (3056, 9240), (3080, 9168), (3360, 8404), (3520, 8022), (3696, 7640), (3820, 7392), (4011, 7040), (4202, 6720), (4224, 6685), (4480, 6303), (4584, 6160), (4620, 6112), (4928, 5730), (5280, 5348)]