256803008

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:143

約数の個数: 168

約数和(自身を含む): 672218112

約数和(自身を除く): 415415104

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 32, 41, 44, 56, 62, 64, 77, 82, 88, 112, 124, 154, 164, 176, 217, 224, 248, 287, 308, 328, 341, 352, 434, 448, 451, 496, 574, 616, 656, 682, 704, 868, 902, 992, 1148, 1232, 1271, 1312, 1364, 1681, 1736, 1804, 1984, 2296, 2387, 2464, 2542, 2624, 2728, 3157, 3362, 3472, 3608, 4592, 4774, 4928, 5084, 5456, 6314, 6724, 6944, 7216, 8897, 9184, 9548, 10168, 10912, 11767, 12628, 13448, 13888, 13981, 14432, 17794, 18368, 18491, 19096, 20336, 21824, 23534, 25256, 26896, 27962, 28864, 35588, 36982, 38192, 40672, 47068, 50512, 52111, 53792, 55924, 71176, 73964, 76384, 81344, 94136, 97867, 101024, 104222, 107584, 111848, 129437, 142352, 147928, 152768, 188272, 195734, 202048, 208444, 223696, 258874, 284704, 295856, 364777, 376544, 391468, 416888, 447392, 517748, 569408, 573221, 591712, 729554, 753088, 782936, 833776, 894784, 1035496, 1146442, 1183424, 1459108, 1565872, 1667552, 2070992, 2292884, 2918216, 3131744, 3335104, 4012547, 4141984, 4585768, 5836432, 6263488, 8025094, 8283968, 9171536, 11672864, 16050188, 18343072, 23345728, 32100376, 36686144, 64200752, 128401504, 256803008]

約数ペア:

[(1, 256803008), (2, 128401504), (4, 64200752), (7, 36686144), (8, 32100376), (11, 23345728), (14, 18343072), (16, 16050188), (22, 11672864), (28, 9171536), (31, 8283968), (32, 8025094), (41, 6263488), (44, 5836432), (56, 4585768), (62, 4141984), (64, 4012547), (77, 3335104), (82, 3131744), (88, 2918216), (112, 2292884), (124, 2070992), (154, 1667552), (164, 1565872), (176, 1459108), (217, 1183424), (224, 1146442), (248, 1035496), (287, 894784), (308, 833776), (328, 782936), (341, 753088), (352, 729554), (434, 591712), (448, 573221), (451, 569408), (496, 517748), (574, 447392), (616, 416888), (656, 391468), (682, 376544), (704, 364777), (868, 295856), (902, 284704), (992, 258874), (1148, 223696), (1232, 208444), (1271, 202048), (1312, 195734), (1364, 188272), (1681, 152768), (1736, 147928), (1804, 142352), (1984, 129437), (2296, 111848), (2387, 107584), (2464, 104222), (2542, 101024), (2624, 97867), (2728, 94136), (3157, 81344), (3362, 76384), (3472, 73964), (3608, 71176), (4592, 55924), (4774, 53792), (4928, 52111), (5084, 50512), (5456, 47068), (6314, 40672), (6724, 38192), (6944, 36982), (7216, 35588), (8897, 28864), (9184, 27962), (9548, 26896), (10168, 25256), (10912, 23534), (11767, 21824), (12628, 20336), (13448, 19096), (13888, 18491), (13981, 18368), (14432, 17794)]