256465728

素因数分解:

$2^6\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 168

約数和(自身を含む): 775996416

約数和(自身を除く): 519530688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 53, 62, 64, 72, 93, 96, 106, 124, 144, 159, 186, 192, 212, 248, 271, 279, 288, 318, 372, 424, 477, 496, 542, 558, 576, 636, 744, 813, 848, 954, 992, 1084, 1116, 1272, 1488, 1626, 1643, 1696, 1908, 1984, 2168, 2232, 2439, 2544, 2976, 3252, 3286, 3392, 3816, 4336, 4464, 4878, 4929, 5088, 5952, 6504, 6572, 7632, 8401, 8672, 8928, 9756, 9858, 10176, 13008, 13144, 14363, 14787, 15264, 16802, 17344, 17856, 19512, 19716, 25203, 26016, 26288, 28726, 29574, 30528, 33604, 39024, 39432, 43089, 50406, 52032, 52576, 57452, 59148, 67208, 75609, 78048, 78864, 86178, 100812, 105152, 114904, 118296, 129267, 134416, 151218, 156096, 157728, 172356, 201624, 229808, 236592, 258534, 268832, 302436, 315456, 344712, 403248, 445253, 459616, 473184, 517068, 537664, 604872, 689424, 806496, 890506, 919232, 946368, 1034136, 1209744, 1335759, 1378848, 1612992, 1781012, 2068272, 2419488, 2671518, 2757696, 3562024, 4007277, 4136544, 4838976, 5343036, 7124048, 8014554, 8273088, 10686072, 14248096, 16029108, 21372144, 28496192, 32058216, 42744288, 64116432, 85488576, 128232864, 256465728]

約数ペア:

[(1, 256465728), (2, 128232864), (3, 85488576), (4, 64116432), (6, 42744288), (8, 32058216), (9, 28496192), (12, 21372144), (16, 16029108), (18, 14248096), (24, 10686072), (31, 8273088), (32, 8014554), (36, 7124048), (48, 5343036), (53, 4838976), (62, 4136544), (64, 4007277), (72, 3562024), (93, 2757696), (96, 2671518), (106, 2419488), (124, 2068272), (144, 1781012), (159, 1612992), (186, 1378848), (192, 1335759), (212, 1209744), (248, 1034136), (271, 946368), (279, 919232), (288, 890506), (318, 806496), (372, 689424), (424, 604872), (477, 537664), (496, 517068), (542, 473184), (558, 459616), (576, 445253), (636, 403248), (744, 344712), (813, 315456), (848, 302436), (954, 268832), (992, 258534), (1084, 236592), (1116, 229808), (1272, 201624), (1488, 172356), (1626, 157728), (1643, 156096), (1696, 151218), (1908, 134416), (1984, 129267), (2168, 118296), (2232, 114904), (2439, 105152), (2544, 100812), (2976, 86178), (3252, 78864), (3286, 78048), (3392, 75609), (3816, 67208), (4336, 59148), (4464, 57452), (4878, 52576), (4929, 52032), (5088, 50406), (5952, 43089), (6504, 39432), (6572, 39024), (7632, 33604), (8401, 30528), (8672, 29574), (8928, 28726), (9756, 26288), (9858, 26016), (10176, 25203), (13008, 19716), (13144, 19512), (14363, 17856), (14787, 17344), (15264, 16802)]