257606784

素因数分解:

$2^7\times 3^3\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 767448000

約数和(自身を除く): 509841216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 131, 144, 192, 216, 262, 288, 384, 393, 432, 524, 569, 576, 786, 864, 1048, 1138, 1152, 1179, 1572, 1707, 1728, 2096, 2276, 2358, 3144, 3414, 3456, 3537, 4192, 4552, 4716, 5121, 6288, 6828, 7074, 8384, 9104, 9432, 10242, 12576, 13656, 14148, 15363, 16768, 18208, 18864, 20484, 25152, 27312, 28296, 30726, 36416, 37728, 40968, 50304, 54624, 56592, 61452, 72832, 74539, 75456, 81936, 109248, 113184, 122904, 149078, 150912, 163872, 218496, 223617, 226368, 245808, 298156, 327744, 447234, 452736, 491616, 596312, 655488, 670851, 894468, 983232, 1192624, 1341702, 1788936, 1966464, 2012553, 2385248, 2683404, 3577872, 4025106, 4770496, 5366808, 7155744, 8050212, 9540992, 10733616, 14311488, 16100424, 21467232, 28622976, 32200848, 42934464, 64401696, 85868928, 128803392, 257606784]

約数ペア:

[(1, 257606784), (2, 128803392), (3, 85868928), (4, 64401696), (6, 42934464), (8, 32200848), (9, 28622976), (12, 21467232), (16, 16100424), (18, 14311488), (24, 10733616), (27, 9540992), (32, 8050212), (36, 7155744), (48, 5366808), (54, 4770496), (64, 4025106), (72, 3577872), (96, 2683404), (108, 2385248), (128, 2012553), (131, 1966464), (144, 1788936), (192, 1341702), (216, 1192624), (262, 983232), (288, 894468), (384, 670851), (393, 655488), (432, 596312), (524, 491616), (569, 452736), (576, 447234), (786, 327744), (864, 298156), (1048, 245808), (1138, 226368), (1152, 223617), (1179, 218496), (1572, 163872), (1707, 150912), (1728, 149078), (2096, 122904), (2276, 113184), (2358, 109248), (3144, 81936), (3414, 75456), (3456, 74539), (3537, 72832), (4192, 61452), (4552, 56592), (4716, 54624), (5121, 50304), (6288, 40968), (6828, 37728), (7074, 36416), (8384, 30726), (9104, 28296), (9432, 27312), (10242, 25152), (12576, 20484), (13656, 18864), (14148, 18208), (15363, 16768)]