639494784

素因数分解:

$2^7\times 3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 256

約数和(自身を含む): 2005401600

約数和(自身を除く): 1365906816

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 47, 48, 54, 62, 64, 72, 93, 94, 96, 108, 124, 127, 128, 141, 144, 186, 188, 192, 216, 248, 254, 279, 282, 288, 372, 376, 381, 384, 423, 432, 496, 508, 558, 564, 576, 744, 752, 762, 837, 846, 864, 992, 1016, 1116, 1128, 1143, 1152, 1269, 1457, 1488, 1504, 1524, 1674, 1692, 1728, 1984, 2032, 2232, 2256, 2286, 2538, 2914, 2976, 3008, 3048, 3348, 3384, 3429, 3456, 3937, 3968, 4064, 4371, 4464, 4512, 4572, 5076, 5828, 5952, 5969, 6016, 6096, 6696, 6768, 6858, 7874, 8128, 8742, 8928, 9024, 9144, 10152, 11656, 11811, 11904, 11938, 12192, 13113, 13392, 13536, 13716, 15748, 16256, 17484, 17856, 17907, 18048, 18288, 20304, 23312, 23622, 23876, 24384, 26226, 26784, 27072, 27432, 31496, 34968, 35433, 35712, 35814, 36576, 39339, 40608, 46624, 47244, 47752, 48768, 52452, 53568, 53721, 54144, 54864, 62992, 69936, 70866, 71628, 73152, 78678, 81216, 93248, 94488, 95504, 104904, 106299, 107136, 107442, 109728, 125984, 139872, 141732, 143256, 146304, 157356, 161163, 162432, 185039, 186496, 188976, 191008, 209808, 212598, 214884, 219456, 251968, 279744, 283464, 286512, 314712, 322326, 370078, 377952, 382016, 419616, 425196, 429768, 438912, 503936, 555117, 559488, 566928, 573024, 629424, 644652, 740156, 755904, 764032, 839232, 850392, 859536, 1110234, 1133856, 1146048, 1258848, 1289304, 1480312, 1511808, 1665351, 1678464, 1700784, 1719072, 2220468, 2267712, 2292096, 2517696, 2578608, 2960624, 3330702, 3401568, 3438144, 4440936, 4535424, 4996053, 5035392, 5157216, 5921248, 6661404, 6803136, 6876288, 8881872, 9992106, 10314432, 11842496, 13322808, 13606272, 17763744, 19984212, 20628864, 23684992, 26645616, 35527488, 39968424, 53291232, 71054976, 79936848, 106582464, 159873696, 213164928, 319747392, 639494784]

約数ペア:

[(1, 639494784), (2, 319747392), (3, 213164928), (4, 159873696), (6, 106582464), (8, 79936848), (9, 71054976), (12, 53291232), (16, 39968424), (18, 35527488), (24, 26645616), (27, 23684992), (31, 20628864), (32, 19984212), (36, 17763744), (47, 13606272), (48, 13322808), (54, 11842496), (62, 10314432), (64, 9992106), (72, 8881872), (93, 6876288), (94, 6803136), (96, 6661404), (108, 5921248), (124, 5157216), (127, 5035392), (128, 4996053), (141, 4535424), (144, 4440936), (186, 3438144), (188, 3401568), (192, 3330702), (216, 2960624), (248, 2578608), (254, 2517696), (279, 2292096), (282, 2267712), (288, 2220468), (372, 1719072), (376, 1700784), (381, 1678464), (384, 1665351), (423, 1511808), (432, 1480312), (496, 1289304), (508, 1258848), (558, 1146048), (564, 1133856), (576, 1110234), (744, 859536), (752, 850392), (762, 839232), (837, 764032), (846, 755904), (864, 740156), (992, 644652), (1016, 629424), (1116, 573024), (1128, 566928), (1143, 559488), (1152, 555117), (1269, 503936), (1457, 438912), (1488, 429768), (1504, 425196), (1524, 419616), (1674, 382016), (1692, 377952), (1728, 370078), (1984, 322326), (2032, 314712), (2232, 286512), (2256, 283464), (2286, 279744), (2538, 251968), (2914, 219456), (2976, 214884), (3008, 212598), (3048, 209808), (3348, 191008), (3384, 188976), (3429, 186496), (3456, 185039), (3937, 162432), (3968, 161163), (4064, 157356), (4371, 146304), (4464, 143256), (4512, 141732), (4572, 139872), (5076, 125984), (5828, 109728), (5952, 107442), (5969, 107136), (6016, 106299), (6096, 104904), (6696, 95504), (6768, 94488), (6858, 93248), (7874, 81216), (8128, 78678), (8742, 73152), (8928, 71628), (9024, 70866), (9144, 69936), (10152, 62992), (11656, 54864), (11811, 54144), (11904, 53721), (11938, 53568), (12192, 52452), (13113, 48768), (13392, 47752), (13536, 47244), (13716, 46624), (15748, 40608), (16256, 39339), (17484, 36576), (17856, 35814), (17907, 35712), (18048, 35433), (18288, 34968), (20304, 31496), (23312, 27432), (23622, 27072), (23876, 26784), (24384, 26226)]