257757696

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 240

約数和(自身を含む): 870712128

約数和(自身を除く): 612954432

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 61, 63, 64, 72, 84, 96, 112, 122, 126, 128, 131, 144, 168, 183, 192, 224, 244, 252, 256, 262, 288, 336, 366, 384, 393, 427, 448, 488, 504, 512, 524, 549, 576, 672, 732, 768, 786, 854, 896, 917, 976, 1008, 1048, 1098, 1152, 1179, 1281, 1344, 1464, 1536, 1572, 1708, 1792, 1834, 1952, 2016, 2096, 2196, 2304, 2358, 2562, 2688, 2751, 2928, 3144, 3416, 3584, 3668, 3843, 3904, 4032, 4192, 4392, 4608, 4716, 5124, 5376, 5502, 5856, 6288, 6832, 7336, 7686, 7808, 7991, 8064, 8253, 8384, 8784, 9432, 10248, 10752, 11004, 11712, 12576, 13664, 14672, 15372, 15616, 15982, 16128, 16506, 16768, 17568, 18864, 20496, 22008, 23424, 23973, 25152, 27328, 29344, 30744, 31232, 31964, 32256, 33012, 33536, 35136, 37728, 40992, 44016, 46848, 47946, 50304, 54656, 55937, 58688, 61488, 63928, 66024, 67072, 70272, 71919, 75456, 81984, 88032, 93696, 95892, 100608, 109312, 111874, 117376, 122976, 127856, 132048, 140544, 143838, 150912, 163968, 167811, 176064, 191784, 201216, 218624, 223748, 234752, 245952, 255712, 264096, 281088, 287676, 301824, 327936, 335622, 352128, 383568, 447496, 469504, 491904, 503433, 511424, 528192, 575352, 603648, 655872, 671244, 704256, 767136, 894992, 983808, 1006866, 1022848, 1056384, 1150704, 1342488, 1408512, 1534272, 1789984, 1967616, 2013732, 2045696, 2112768, 2301408, 2684976, 3068544, 3579968, 4027464, 4091392, 4225536, 4602816, 5369952, 6137088, 7159936, 8054928, 9205632, 10739904, 12274176, 14319872, 16109856, 18411264, 21479808, 28639744, 32219712, 36822528, 42959616, 64439424, 85919232, 128878848, 257757696]

約数ペア:

[(1, 257757696), (2, 128878848), (3, 85919232), (4, 64439424), (6, 42959616), (7, 36822528), (8, 32219712), (9, 28639744), (12, 21479808), (14, 18411264), (16, 16109856), (18, 14319872), (21, 12274176), (24, 10739904), (28, 9205632), (32, 8054928), (36, 7159936), (42, 6137088), (48, 5369952), (56, 4602816), (61, 4225536), (63, 4091392), (64, 4027464), (72, 3579968), (84, 3068544), (96, 2684976), (112, 2301408), (122, 2112768), (126, 2045696), (128, 2013732), (131, 1967616), (144, 1789984), (168, 1534272), (183, 1408512), (192, 1342488), (224, 1150704), (244, 1056384), (252, 1022848), (256, 1006866), (262, 983808), (288, 894992), (336, 767136), (366, 704256), (384, 671244), (393, 655872), (427, 603648), (448, 575352), (488, 528192), (504, 511424), (512, 503433), (524, 491904), (549, 469504), (576, 447496), (672, 383568), (732, 352128), (768, 335622), (786, 327936), (854, 301824), (896, 287676), (917, 281088), (976, 264096), (1008, 255712), (1048, 245952), (1098, 234752), (1152, 223748), (1179, 218624), (1281, 201216), (1344, 191784), (1464, 176064), (1536, 167811), (1572, 163968), (1708, 150912), (1792, 143838), (1834, 140544), (1952, 132048), (2016, 127856), (2096, 122976), (2196, 117376), (2304, 111874), (2358, 109312), (2562, 100608), (2688, 95892), (2751, 93696), (2928, 88032), (3144, 81984), (3416, 75456), (3584, 71919), (3668, 70272), (3843, 67072), (3904, 66024), (4032, 63928), (4192, 61488), (4392, 58688), (4608, 55937), (4716, 54656), (5124, 50304), (5376, 47946), (5502, 46848), (5856, 44016), (6288, 40992), (6832, 37728), (7336, 35136), (7686, 33536), (7808, 33012), (7991, 32256), (8064, 31964), (8253, 31232), (8384, 30744), (8784, 29344), (9432, 27328), (10248, 25152), (10752, 23973), (11004, 23424), (11712, 22008), (12576, 20496), (13664, 18864), (14672, 17568), (15372, 16768), (15616, 16506), (15982, 16128)]