257542792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 588349440

約数和(自身を除く): 330806648

約数列:

[1, 2, 4, 8, 13, 17, 26, 31, 34, 37, 52, 62, 68, 74, 104, 124, 127, 136, 148, 221, 248, 254, 296, 403, 442, 481, 508, 527, 629, 806, 884, 962, 1016, 1054, 1147, 1258, 1612, 1651, 1768, 1924, 2108, 2159, 2294, 2516, 3224, 3302, 3848, 3937, 4216, 4318, 4588, 4699, 5032, 6604, 6851, 7874, 8177, 8636, 9176, 9398, 13208, 13702, 14911, 15748, 16354, 17272, 18796, 19499, 27404, 28067, 29822, 31496, 32708, 37592, 38998, 51181, 54808, 56134, 59644, 61087, 65416, 66929, 77996, 79883, 102362, 112268, 119288, 122174, 133858, 145669, 155992, 159766, 204724, 224536, 244348, 253487, 267716, 291338, 319532, 409448, 488696, 506974, 535432, 582676, 639064, 870077, 1013948, 1038479, 1165352, 1740154, 1893697, 2027896, 2076958, 2476373, 3480308, 3787394, 4153916, 4952746, 6960616, 7574788, 8307832, 9905492, 15149576, 19810984, 32192849, 64385698, 128771396, 257542792]

約数ペア:

[(1, 257542792), (2, 128771396), (4, 64385698), (8, 32192849), (13, 19810984), (17, 15149576), (26, 9905492), (31, 8307832), (34, 7574788), (37, 6960616), (52, 4952746), (62, 4153916), (68, 3787394), (74, 3480308), (104, 2476373), (124, 2076958), (127, 2027896), (136, 1893697), (148, 1740154), (221, 1165352), (248, 1038479), (254, 1013948), (296, 870077), (403, 639064), (442, 582676), (481, 535432), (508, 506974), (527, 488696), (629, 409448), (806, 319532), (884, 291338), (962, 267716), (1016, 253487), (1054, 244348), (1147, 224536), (1258, 204724), (1612, 159766), (1651, 155992), (1768, 145669), (1924, 133858), (2108, 122174), (2159, 119288), (2294, 112268), (2516, 102362), (3224, 79883), (3302, 77996), (3848, 66929), (3937, 65416), (4216, 61087), (4318, 59644), (4588, 56134), (4699, 54808), (5032, 51181), (6604, 38998), (6851, 37592), (7874, 32708), (8177, 31496), (8636, 29822), (9176, 28067), (9398, 27404), (13208, 19499), (13702, 18796), (14911, 17272), (15748, 16354)]