1981566720

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{8191}}^1$

素因数の和:8228

約数の個数: 288

約数和(自身を含む): 8037335040

約数和(自身を除く): 6055768320

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, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 3840, 4032, 4320, 4480, 5040, 5376, 5760, 6048, 6720, 6912, 7560, 8064, 8191, 8640, 8960, 10080, 11520, 12096, 13440, 15120, 16128, 16382, 17280, 20160, 24192, 24573, 26880, 30240, 32764, 34560, 40320, 40955, 48384, 49146, 57337, 60480, 65528, 73719, 80640, 81910, 98292, 114674, 120960, 122865, 131056, 147438, 163820, 172011, 196584, 221157, 229348, 241920, 245730, 262112, 286685, 294876, 327640, 344022, 368595, 393168, 442314, 458696, 491460, 516033, 524224, 573370, 589752, 655280, 688044, 737190, 786336, 860055, 884628, 917392, 982920, 1032066, 1048448, 1105785, 1146740, 1179504, 1310560, 1376088, 1474380, 1548099, 1572672, 1720110, 1769256, 1834784, 1965840, 2064132, 2096896, 2211570, 2293480, 2359008, 2580165, 2621120, 2752176, 2948760, 3096198, 3145344, 3440220, 3538512, 3669568, 3931680, 4128264, 4423140, 4586960, 4718016, 5160330, 5242240, 5504352, 5897520, 6192396, 6290688, 6880440, 7077024, 7339136, 7740495, 7863360, 8256528, 8846280, 9173920, 9436032, 10320660, 10484480, 11008704, 11795040, 12384792, 13760880, 14154048, 14678272, 15480990, 15726720, 16513056, 17692560, 18347840, 18872064, 20641320, 22017408, 23590080, 24769584, 27521760, 28308096, 30961980, 31453440, 33026112, 35385120, 36695680, 41282640, 44034816, 47180160, 49539168, 55043520, 56616192, 61923960, 66052224, 70770240, 73391360, 82565280, 94360320, 99078336, 110087040, 123847920, 132104448, 141540480, 165130560, 198156672, 220174080, 247695840, 283080960, 330261120, 396313344, 495391680, 660522240, 990783360, 1981566720]

約数ペア:

[(1, 1981566720), (2, 990783360), (3, 660522240), (4, 495391680), (5, 396313344), (6, 330261120), (7, 283080960), (8, 247695840), (9, 220174080), (10, 198156672), (12, 165130560), (14, 141540480), (15, 132104448), (16, 123847920), (18, 110087040), (20, 99078336), (21, 94360320), (24, 82565280), (27, 73391360), (28, 70770240), (30, 66052224), (32, 61923960), (35, 56616192), (36, 55043520), (40, 49539168), (42, 47180160), (45, 44034816), (48, 41282640), (54, 36695680), (56, 35385120), (60, 33026112), (63, 31453440), (64, 30961980), (70, 28308096), (72, 27521760), (80, 24769584), (84, 23590080), (90, 22017408), (96, 20641320), (105, 18872064), (108, 18347840), (112, 17692560), (120, 16513056), (126, 15726720), (128, 15480990), (135, 14678272), (140, 14154048), (144, 13760880), (160, 12384792), (168, 11795040), (180, 11008704), (189, 10484480), (192, 10320660), (210, 9436032), (216, 9173920), (224, 8846280), (240, 8256528), (252, 7863360), (256, 7740495), (270, 7339136), (280, 7077024), (288, 6880440), (315, 6290688), (320, 6192396), (336, 5897520), (360, 5504352), (378, 5242240), (384, 5160330), (420, 4718016), (432, 4586960), (448, 4423140), (480, 4128264), (504, 3931680), (540, 3669568), (560, 3538512), (576, 3440220), (630, 3145344), (640, 3096198), (672, 2948760), (720, 2752176), (756, 2621120), (768, 2580165), (840, 2359008), (864, 2293480), (896, 2211570), (945, 2096896), (960, 2064132), (1008, 1965840), (1080, 1834784), (1120, 1769256), (1152, 1720110), (1260, 1572672), (1280, 1548099), (1344, 1474380), (1440, 1376088), (1512, 1310560), (1680, 1179504), (1728, 1146740), (1792, 1105785), (1890, 1048448), (1920, 1032066), (2016, 982920), (2160, 917392), (2240, 884628), (2304, 860055), (2520, 786336), (2688, 737190), (2880, 688044), (3024, 655280), (3360, 589752), (3456, 573370), (3780, 524224), (3840, 516033), (4032, 491460), (4320, 458696), (4480, 442314), (5040, 393168), (5376, 368595), (5760, 344022), (6048, 327640), (6720, 294876), (6912, 286685), (7560, 262112), (8064, 245730), (8191, 241920), (8640, 229348), (8960, 221157), (10080, 196584), (11520, 172011), (12096, 163820), (13440, 147438), (15120, 131056), (16128, 122865), (16382, 120960), (17280, 114674), (20160, 98292), (24192, 81910), (24573, 80640), (26880, 73719), (30240, 65528), (32764, 60480), (34560, 57337), (40320, 49146), (40955, 48384)]