257007744

素因数分解:

$2^7\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 288

約数和(自身を含む): 895646700

約数和(自身を除く): 638638956

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 49, 56, 58, 63, 64, 72, 84, 87, 96, 98, 112, 116, 126, 128, 144, 147, 157, 168, 174, 192, 196, 203, 224, 232, 252, 261, 288, 294, 314, 336, 348, 384, 392, 406, 441, 448, 464, 471, 504, 522, 576, 588, 609, 628, 672, 696, 784, 812, 882, 896, 928, 942, 1008, 1044, 1099, 1152, 1176, 1218, 1256, 1344, 1392, 1413, 1421, 1568, 1624, 1764, 1827, 1856, 1884, 2016, 2088, 2198, 2352, 2436, 2512, 2688, 2784, 2826, 2842, 3136, 3248, 3297, 3528, 3654, 3712, 3768, 4032, 4176, 4263, 4396, 4553, 4704, 4872, 5024, 5568, 5652, 5684, 6272, 6496, 6594, 7056, 7308, 7536, 7693, 8064, 8352, 8526, 8792, 9106, 9408, 9744, 9891, 10048, 11136, 11304, 11368, 12789, 12992, 13188, 13659, 14112, 14616, 15072, 15386, 16704, 17052, 17584, 18212, 18816, 19488, 19782, 20096, 22608, 22736, 23079, 25578, 25984, 26376, 27318, 28224, 29232, 30144, 30772, 31871, 33408, 34104, 35168, 36424, 38976, 39564, 40977, 45216, 45472, 46158, 51156, 52752, 54636, 56448, 58464, 60288, 61544, 63742, 68208, 69237, 70336, 72848, 77952, 79128, 81954, 90432, 90944, 92316, 95613, 102312, 105504, 109272, 116928, 123088, 127484, 136416, 138474, 140672, 145696, 158256, 163908, 180864, 181888, 184632, 191226, 204624, 211008, 218544, 223097, 233856, 246176, 254968, 272832, 276948, 286839, 291392, 316512, 327816, 369264, 382452, 409248, 422016, 437088, 446194, 492352, 509936, 545664, 553896, 573678, 582784, 633024, 655632, 669291, 738528, 764904, 818496, 874176, 892388, 984704, 1019872, 1107792, 1147356, 1266048, 1311264, 1338582, 1477056, 1529808, 1636992, 1748352, 1784776, 2007873, 2039744, 2215584, 2294712, 2622528, 2677164, 2954112, 3059616, 3569552, 4015746, 4079488, 4431168, 4589424, 5245056, 5354328, 6119232, 7139104, 8031492, 8862336, 9178848, 10708656, 12238464, 14278208, 16062984, 18357696, 21417312, 28556416, 32125968, 36715392, 42834624, 64251936, 85669248, 128503872, 257007744]

約数ペア:

[(1, 257007744), (2, 128503872), (3, 85669248), (4, 64251936), (6, 42834624), (7, 36715392), (8, 32125968), (9, 28556416), (12, 21417312), (14, 18357696), (16, 16062984), (18, 14278208), (21, 12238464), (24, 10708656), (28, 9178848), (29, 8862336), (32, 8031492), (36, 7139104), (42, 6119232), (48, 5354328), (49, 5245056), (56, 4589424), (58, 4431168), (63, 4079488), (64, 4015746), (72, 3569552), (84, 3059616), (87, 2954112), (96, 2677164), (98, 2622528), (112, 2294712), (116, 2215584), (126, 2039744), (128, 2007873), (144, 1784776), (147, 1748352), (157, 1636992), (168, 1529808), (174, 1477056), (192, 1338582), (196, 1311264), (203, 1266048), (224, 1147356), (232, 1107792), (252, 1019872), (261, 984704), (288, 892388), (294, 874176), (314, 818496), (336, 764904), (348, 738528), (384, 669291), (392, 655632), (406, 633024), (441, 582784), (448, 573678), (464, 553896), (471, 545664), (504, 509936), (522, 492352), (576, 446194), (588, 437088), (609, 422016), (628, 409248), (672, 382452), (696, 369264), (784, 327816), (812, 316512), (882, 291392), (896, 286839), (928, 276948), (942, 272832), (1008, 254968), (1044, 246176), (1099, 233856), (1152, 223097), (1176, 218544), (1218, 211008), (1256, 204624), (1344, 191226), (1392, 184632), (1413, 181888), (1421, 180864), (1568, 163908), (1624, 158256), (1764, 145696), (1827, 140672), (1856, 138474), (1884, 136416), (2016, 127484), (2088, 123088), (2198, 116928), (2352, 109272), (2436, 105504), (2512, 102312), (2688, 95613), (2784, 92316), (2826, 90944), (2842, 90432), (3136, 81954), (3248, 79128), (3297, 77952), (3528, 72848), (3654, 70336), (3712, 69237), (3768, 68208), (4032, 63742), (4176, 61544), (4263, 60288), (4396, 58464), (4553, 56448), (4704, 54636), (4872, 52752), (5024, 51156), (5568, 46158), (5652, 45472), (5684, 45216), (6272, 40977), (6496, 39564), (6594, 38976), (7056, 36424), (7308, 35168), (7536, 34104), (7693, 33408), (8064, 31871), (8352, 30772), (8526, 30144), (8792, 29232), (9106, 28224), (9408, 27318), (9744, 26376), (9891, 25984), (10048, 25578), (11136, 23079), (11304, 22736), (11368, 22608), (12789, 20096), (12992, 19782), (13188, 19488), (13659, 18816), (14112, 18212), (14616, 17584), (15072, 17052), (15386, 16704)]