638740480

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 288

約数和(自身を含む): 1904666400

約数和(自身を除く): 1265925920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 67, 70, 76, 80, 95, 98, 112, 128, 133, 134, 140, 152, 160, 190, 196, 224, 245, 256, 266, 268, 280, 304, 320, 335, 380, 392, 448, 469, 490, 512, 532, 536, 560, 608, 640, 665, 670, 760, 784, 896, 931, 938, 980, 1024, 1064, 1072, 1120, 1216, 1273, 1280, 1330, 1340, 1520, 1568, 1792, 1862, 1876, 1960, 2048, 2128, 2144, 2240, 2345, 2432, 2546, 2560, 2660, 2680, 3040, 3136, 3283, 3584, 3724, 3752, 3920, 4256, 4288, 4480, 4655, 4690, 4864, 5092, 5120, 5320, 5360, 6080, 6272, 6365, 6566, 7168, 7448, 7504, 7840, 8512, 8576, 8911, 8960, 9310, 9380, 9728, 10184, 10240, 10640, 10720, 12160, 12544, 12730, 13132, 14336, 14896, 15008, 15680, 16415, 17024, 17152, 17822, 17920, 18620, 18760, 19456, 20368, 21280, 21440, 24320, 25088, 25460, 26264, 29792, 30016, 31360, 32830, 34048, 34304, 35644, 35840, 37240, 37520, 38912, 40736, 42560, 42880, 44555, 48640, 50176, 50920, 52528, 59584, 60032, 62377, 62720, 65660, 68096, 68608, 71288, 71680, 74480, 75040, 81472, 85120, 85760, 89110, 97280, 100352, 101840, 105056, 119168, 120064, 124754, 125440, 131320, 136192, 137216, 142576, 148960, 150080, 162944, 170240, 171520, 178220, 194560, 203680, 210112, 238336, 240128, 249508, 250880, 262640, 272384, 285152, 297920, 300160, 311885, 325888, 340480, 343040, 356440, 407360, 420224, 476672, 480256, 499016, 501760, 525280, 570304, 595840, 600320, 623770, 651776, 680960, 686080, 712880, 814720, 840448, 953344, 960512, 998032, 1050560, 1140608, 1191680, 1200640, 1247540, 1303552, 1361920, 1425760, 1629440, 1680896, 1906688, 1996064, 2101120, 2281216, 2383360, 2401280, 2495080, 2607104, 2851520, 3258880, 3361792, 3992128, 4202240, 4562432, 4766720, 4802560, 4990160, 5703040, 6517760, 6723584, 7984256, 8404480, 9124864, 9533440, 9980320, 11406080, 13035520, 15968512, 16808960, 18249728, 19960640, 22812160, 31937024, 33617920, 39921280, 45624320, 63874048, 79842560, 91248640, 127748096, 159685120, 319370240, 638740480]

約数ペア:

[(1, 638740480), (2, 319370240), (4, 159685120), (5, 127748096), (7, 91248640), (8, 79842560), (10, 63874048), (14, 45624320), (16, 39921280), (19, 33617920), (20, 31937024), (28, 22812160), (32, 19960640), (35, 18249728), (38, 16808960), (40, 15968512), (49, 13035520), (56, 11406080), (64, 9980320), (67, 9533440), (70, 9124864), (76, 8404480), (80, 7984256), (95, 6723584), (98, 6517760), (112, 5703040), (128, 4990160), (133, 4802560), (134, 4766720), (140, 4562432), (152, 4202240), (160, 3992128), (190, 3361792), (196, 3258880), (224, 2851520), (245, 2607104), (256, 2495080), (266, 2401280), (268, 2383360), (280, 2281216), (304, 2101120), (320, 1996064), (335, 1906688), (380, 1680896), (392, 1629440), (448, 1425760), (469, 1361920), (490, 1303552), (512, 1247540), (532, 1200640), (536, 1191680), (560, 1140608), (608, 1050560), (640, 998032), (665, 960512), (670, 953344), (760, 840448), (784, 814720), (896, 712880), (931, 686080), (938, 680960), (980, 651776), (1024, 623770), (1064, 600320), (1072, 595840), (1120, 570304), (1216, 525280), (1273, 501760), (1280, 499016), (1330, 480256), (1340, 476672), (1520, 420224), (1568, 407360), (1792, 356440), (1862, 343040), (1876, 340480), (1960, 325888), (2048, 311885), (2128, 300160), (2144, 297920), (2240, 285152), (2345, 272384), (2432, 262640), (2546, 250880), (2560, 249508), (2660, 240128), (2680, 238336), (3040, 210112), (3136, 203680), (3283, 194560), (3584, 178220), (3724, 171520), (3752, 170240), (3920, 162944), (4256, 150080), (4288, 148960), (4480, 142576), (4655, 137216), (4690, 136192), (4864, 131320), (5092, 125440), (5120, 124754), (5320, 120064), (5360, 119168), (6080, 105056), (6272, 101840), (6365, 100352), (6566, 97280), (7168, 89110), (7448, 85760), (7504, 85120), (7840, 81472), (8512, 75040), (8576, 74480), (8911, 71680), (8960, 71288), (9310, 68608), (9380, 68096), (9728, 65660), (10184, 62720), (10240, 62377), (10640, 60032), (10720, 59584), (12160, 52528), (12544, 50920), (12730, 50176), (13132, 48640), (14336, 44555), (14896, 42880), (15008, 42560), (15680, 40736), (16415, 38912), (17024, 37520), (17152, 37240), (17822, 35840), (17920, 35644), (18620, 34304), (18760, 34048), (19456, 32830), (20368, 31360), (21280, 30016), (21440, 29792), (24320, 26264), (25088, 25460)]