1638203840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:695

約数の個数: 224

約数和(自身を含む): 4857439104

約数和(自身を除く): 3219235264

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 101, 104, 112, 130, 140, 160, 182, 202, 208, 224, 260, 280, 320, 364, 404, 416, 448, 455, 505, 520, 557, 560, 707, 728, 808, 832, 910, 1010, 1040, 1114, 1120, 1313, 1414, 1456, 1616, 1820, 2020, 2080, 2228, 2240, 2626, 2785, 2828, 2912, 3232, 3535, 3640, 3899, 4040, 4160, 4456, 5252, 5570, 5656, 5824, 6464, 6565, 7070, 7241, 7280, 7798, 8080, 8912, 9191, 10504, 11140, 11312, 13130, 14140, 14482, 14560, 15596, 16160, 17824, 18382, 19495, 21008, 22280, 22624, 26260, 28280, 28964, 29120, 31192, 32320, 35648, 36205, 36764, 38990, 42016, 44560, 45248, 45955, 50687, 52520, 56257, 56560, 57928, 62384, 72410, 73528, 77980, 84032, 89120, 91910, 101374, 105040, 112514, 113120, 115856, 124768, 144820, 147056, 155960, 178240, 183820, 202748, 210080, 225028, 226240, 231712, 249536, 253435, 281285, 289640, 294112, 311920, 367640, 393799, 405496, 420160, 450056, 463424, 506870, 562570, 579280, 588224, 623840, 731341, 735280, 787598, 810992, 900112, 1013740, 1125140, 1158560, 1247680, 1462682, 1470560, 1575196, 1621984, 1800224, 1968995, 2027480, 2250280, 2317120, 2925364, 2941120, 3150392, 3243968, 3600448, 3656705, 3937990, 4054960, 4500560, 5119387, 5850728, 6300784, 7313410, 7875980, 8109920, 9001120, 10238774, 11701456, 12601568, 14626820, 15751960, 16219840, 18002240, 20477548, 23402912, 25203136, 25596935, 29253640, 31503920, 40955096, 46805824, 51193870, 58507280, 63007840, 81910192, 102387740, 117014560, 126015680, 163820384, 204775480, 234029120, 327640768, 409550960, 819101920, 1638203840]

約数ペア:

[(1, 1638203840), (2, 819101920), (4, 409550960), (5, 327640768), (7, 234029120), (8, 204775480), (10, 163820384), (13, 126015680), (14, 117014560), (16, 102387740), (20, 81910192), (26, 63007840), (28, 58507280), (32, 51193870), (35, 46805824), (40, 40955096), (52, 31503920), (56, 29253640), (64, 25596935), (65, 25203136), (70, 23402912), (80, 20477548), (91, 18002240), (101, 16219840), (104, 15751960), (112, 14626820), (130, 12601568), (140, 11701456), (160, 10238774), (182, 9001120), (202, 8109920), (208, 7875980), (224, 7313410), (260, 6300784), (280, 5850728), (320, 5119387), (364, 4500560), (404, 4054960), (416, 3937990), (448, 3656705), (455, 3600448), (505, 3243968), (520, 3150392), (557, 2941120), (560, 2925364), (707, 2317120), (728, 2250280), (808, 2027480), (832, 1968995), (910, 1800224), (1010, 1621984), (1040, 1575196), (1114, 1470560), (1120, 1462682), (1313, 1247680), (1414, 1158560), (1456, 1125140), (1616, 1013740), (1820, 900112), (2020, 810992), (2080, 787598), (2228, 735280), (2240, 731341), (2626, 623840), (2785, 588224), (2828, 579280), (2912, 562570), (3232, 506870), (3535, 463424), (3640, 450056), (3899, 420160), (4040, 405496), (4160, 393799), (4456, 367640), (5252, 311920), (5570, 294112), (5656, 289640), (5824, 281285), (6464, 253435), (6565, 249536), (7070, 231712), (7241, 226240), (7280, 225028), (7798, 210080), (8080, 202748), (8912, 183820), (9191, 178240), (10504, 155960), (11140, 147056), (11312, 144820), (13130, 124768), (14140, 115856), (14482, 113120), (14560, 112514), (15596, 105040), (16160, 101374), (17824, 91910), (18382, 89120), (19495, 84032), (21008, 77980), (22280, 73528), (22624, 72410), (26260, 62384), (28280, 57928), (28964, 56560), (29120, 56257), (31192, 52520), (32320, 50687), (35648, 45955), (36205, 45248), (36764, 44560), (38990, 42016)]