638375808

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 256

約数和(自身を含む): 2055536640

約数和(自身を除く): 1417160832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 47, 48, 56, 62, 64, 84, 93, 94, 96, 112, 124, 128, 141, 163, 168, 186, 188, 192, 217, 224, 248, 282, 326, 329, 336, 372, 376, 384, 434, 448, 489, 496, 564, 651, 652, 658, 672, 744, 752, 868, 896, 978, 987, 992, 1128, 1141, 1302, 1304, 1316, 1344, 1457, 1488, 1504, 1736, 1956, 1974, 1984, 2256, 2282, 2604, 2608, 2632, 2688, 2914, 2976, 3008, 3423, 3472, 3912, 3948, 3968, 4371, 4512, 4564, 5053, 5208, 5216, 5264, 5828, 5952, 6016, 6846, 6944, 7661, 7824, 7896, 8742, 9024, 9128, 10106, 10199, 10416, 10432, 10528, 11656, 11904, 13692, 13888, 15159, 15322, 15648, 15792, 17484, 18048, 18256, 20212, 20398, 20832, 20864, 21056, 22983, 23312, 27384, 27776, 30318, 30597, 30644, 31296, 31584, 34968, 35371, 36512, 40424, 40796, 41664, 42112, 45966, 46624, 53627, 54768, 60636, 61194, 61288, 62592, 63168, 69936, 70742, 73024, 80848, 81592, 83328, 91932, 93248, 106113, 107254, 109536, 121272, 122388, 122576, 126336, 139872, 141484, 146048, 160881, 161696, 163184, 183864, 186496, 212226, 214508, 219072, 237491, 242544, 244776, 245152, 279744, 282968, 321762, 323392, 326368, 367728, 424452, 429016, 438144, 474982, 485088, 489552, 490304, 559488, 565936, 643524, 646784, 652736, 712473, 735456, 848904, 858032, 949964, 970176, 979104, 980608, 1131872, 1287048, 1305472, 1424946, 1470912, 1662437, 1697808, 1716064, 1899928, 1940352, 1958208, 2263744, 2574096, 2849892, 2941824, 3324874, 3395616, 3432128, 3799856, 3916416, 4527488, 4987311, 5148192, 5699784, 6649748, 6791232, 6864256, 7599712, 9974622, 10296384, 11399568, 13299496, 13582464, 15199424, 19949244, 20592768, 22799136, 26598992, 30398848, 39898488, 45598272, 53197984, 79796976, 91196544, 106395968, 159593952, 212791936, 319187904, 638375808]

約数ペア:

[(1, 638375808), (2, 319187904), (3, 212791936), (4, 159593952), (6, 106395968), (7, 91196544), (8, 79796976), (12, 53197984), (14, 45598272), (16, 39898488), (21, 30398848), (24, 26598992), (28, 22799136), (31, 20592768), (32, 19949244), (42, 15199424), (47, 13582464), (48, 13299496), (56, 11399568), (62, 10296384), (64, 9974622), (84, 7599712), (93, 6864256), (94, 6791232), (96, 6649748), (112, 5699784), (124, 5148192), (128, 4987311), (141, 4527488), (163, 3916416), (168, 3799856), (186, 3432128), (188, 3395616), (192, 3324874), (217, 2941824), (224, 2849892), (248, 2574096), (282, 2263744), (326, 1958208), (329, 1940352), (336, 1899928), (372, 1716064), (376, 1697808), (384, 1662437), (434, 1470912), (448, 1424946), (489, 1305472), (496, 1287048), (564, 1131872), (651, 980608), (652, 979104), (658, 970176), (672, 949964), (744, 858032), (752, 848904), (868, 735456), (896, 712473), (978, 652736), (987, 646784), (992, 643524), (1128, 565936), (1141, 559488), (1302, 490304), (1304, 489552), (1316, 485088), (1344, 474982), (1457, 438144), (1488, 429016), (1504, 424452), (1736, 367728), (1956, 326368), (1974, 323392), (1984, 321762), (2256, 282968), (2282, 279744), (2604, 245152), (2608, 244776), (2632, 242544), (2688, 237491), (2914, 219072), (2976, 214508), (3008, 212226), (3423, 186496), (3472, 183864), (3912, 163184), (3948, 161696), (3968, 160881), (4371, 146048), (4512, 141484), (4564, 139872), (5053, 126336), (5208, 122576), (5216, 122388), (5264, 121272), (5828, 109536), (5952, 107254), (6016, 106113), (6846, 93248), (6944, 91932), (7661, 83328), (7824, 81592), (7896, 80848), (8742, 73024), (9024, 70742), (9128, 69936), (10106, 63168), (10199, 62592), (10416, 61288), (10432, 61194), (10528, 60636), (11656, 54768), (11904, 53627), (13692, 46624), (13888, 45966), (15159, 42112), (15322, 41664), (15648, 40796), (15792, 40424), (17484, 36512), (18048, 35371), (18256, 34968), (20212, 31584), (20398, 31296), (20832, 30644), (20864, 30597), (21056, 30318), (22983, 27776), (23312, 27384)]