639383360

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{337}}^1$

素因数の和:390

約数の個数: 252

約数和(自身を含む): 1952532036

約数和(自身を除く): 1313148676

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 160, 176, 196, 220, 224, 242, 245, 280, 308, 320, 337, 352, 385, 392, 440, 448, 484, 490, 539, 560, 605, 616, 674, 704, 770, 784, 847, 880, 968, 980, 1078, 1120, 1210, 1232, 1348, 1540, 1568, 1685, 1694, 1760, 1936, 1960, 2156, 2240, 2359, 2420, 2464, 2695, 2696, 3080, 3136, 3370, 3388, 3520, 3707, 3872, 3920, 4235, 4312, 4718, 4840, 4928, 5390, 5392, 5929, 6160, 6740, 6776, 7414, 7744, 7840, 8470, 8624, 9436, 9680, 10780, 10784, 11795, 11858, 12320, 13480, 13552, 14828, 15680, 16513, 16940, 17248, 18535, 18872, 19360, 21560, 21568, 23590, 23716, 24640, 25949, 26960, 27104, 29645, 29656, 33026, 33880, 34496, 37070, 37744, 38720, 40777, 43120, 47180, 47432, 51898, 53920, 54208, 59290, 59312, 66052, 67760, 74140, 75488, 81554, 82565, 86240, 94360, 94864, 103796, 107840, 118580, 118624, 129745, 132104, 135520, 148280, 150976, 163108, 165130, 172480, 181643, 188720, 189728, 203885, 207592, 237160, 237248, 259490, 264208, 271040, 285439, 296560, 326216, 330260, 363286, 377440, 379456, 407770, 415184, 474320, 518980, 528416, 570878, 593120, 652432, 660520, 726572, 754880, 815540, 830368, 908215, 948640, 1037960, 1056832, 1141756, 1186240, 1304864, 1321040, 1427195, 1453144, 1631080, 1660736, 1816430, 1897280, 1998073, 2075920, 2283512, 2609728, 2642080, 2854390, 2906288, 3262160, 3632860, 3996146, 4151840, 4567024, 5284160, 5708780, 5812576, 6524320, 7265720, 7992292, 8303680, 9134048, 9990365, 11417560, 11625152, 13048640, 14531440, 15984584, 18268096, 19980730, 22835120, 29062880, 31969168, 39961460, 45670240, 58125760, 63938336, 79922920, 91340480, 127876672, 159845840, 319691680, 639383360]

約数ペア:

[(1, 639383360), (2, 319691680), (4, 159845840), (5, 127876672), (7, 91340480), (8, 79922920), (10, 63938336), (11, 58125760), (14, 45670240), (16, 39961460), (20, 31969168), (22, 29062880), (28, 22835120), (32, 19980730), (35, 18268096), (40, 15984584), (44, 14531440), (49, 13048640), (55, 11625152), (56, 11417560), (64, 9990365), (70, 9134048), (77, 8303680), (80, 7992292), (88, 7265720), (98, 6524320), (110, 5812576), (112, 5708780), (121, 5284160), (140, 4567024), (154, 4151840), (160, 3996146), (176, 3632860), (196, 3262160), (220, 2906288), (224, 2854390), (242, 2642080), (245, 2609728), (280, 2283512), (308, 2075920), (320, 1998073), (337, 1897280), (352, 1816430), (385, 1660736), (392, 1631080), (440, 1453144), (448, 1427195), (484, 1321040), (490, 1304864), (539, 1186240), (560, 1141756), (605, 1056832), (616, 1037960), (674, 948640), (704, 908215), (770, 830368), (784, 815540), (847, 754880), (880, 726572), (968, 660520), (980, 652432), (1078, 593120), (1120, 570878), (1210, 528416), (1232, 518980), (1348, 474320), (1540, 415184), (1568, 407770), (1685, 379456), (1694, 377440), (1760, 363286), (1936, 330260), (1960, 326216), (2156, 296560), (2240, 285439), (2359, 271040), (2420, 264208), (2464, 259490), (2695, 237248), (2696, 237160), (3080, 207592), (3136, 203885), (3370, 189728), (3388, 188720), (3520, 181643), (3707, 172480), (3872, 165130), (3920, 163108), (4235, 150976), (4312, 148280), (4718, 135520), (4840, 132104), (4928, 129745), (5390, 118624), (5392, 118580), (5929, 107840), (6160, 103796), (6740, 94864), (6776, 94360), (7414, 86240), (7744, 82565), (7840, 81554), (8470, 75488), (8624, 74140), (9436, 67760), (9680, 66052), (10780, 59312), (10784, 59290), (11795, 54208), (11858, 53920), (12320, 51898), (13480, 47432), (13552, 47180), (14828, 43120), (15680, 40777), (16513, 38720), (16940, 37744), (17248, 37070), (18535, 34496), (18872, 33880), (19360, 33026), (21560, 29656), (21568, 29645), (23590, 27104), (23716, 26960), (24640, 25949)]