257912064

素因数分解:

$2^8\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 216

約数和(自身を含む): 806088192

約数和(自身を除く): 548176128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 32, 36, 46, 48, 62, 64, 69, 72, 92, 93, 96, 124, 128, 138, 144, 157, 184, 186, 192, 207, 248, 256, 276, 279, 288, 314, 368, 372, 384, 414, 471, 496, 552, 558, 576, 628, 713, 736, 744, 768, 828, 942, 992, 1104, 1116, 1152, 1256, 1413, 1426, 1472, 1488, 1656, 1884, 1984, 2139, 2208, 2232, 2304, 2512, 2826, 2852, 2944, 2976, 3312, 3611, 3768, 3968, 4278, 4416, 4464, 4867, 5024, 5652, 5704, 5888, 5952, 6417, 6624, 7222, 7536, 7936, 8556, 8832, 8928, 9734, 10048, 10833, 11304, 11408, 11904, 12834, 13248, 14444, 14601, 15072, 17112, 17664, 17856, 19468, 20096, 21666, 22608, 22816, 23808, 25668, 26496, 28888, 29202, 30144, 32499, 34224, 35712, 38936, 40192, 43332, 43803, 45216, 45632, 51336, 52992, 57776, 58404, 60288, 64998, 68448, 71424, 77872, 86664, 87606, 90432, 91264, 102672, 111941, 115552, 116808, 120576, 129996, 136896, 155744, 173328, 175212, 180864, 182528, 205344, 223882, 231104, 233616, 259992, 273792, 311488, 335823, 346656, 350424, 361728, 410688, 447764, 462208, 467232, 519984, 547584, 622976, 671646, 693312, 700848, 821376, 895528, 924416, 934464, 1007469, 1039968, 1245952, 1343292, 1386624, 1401696, 1642752, 1791056, 1868928, 2014938, 2079936, 2686584, 2773248, 2803392, 3582112, 3737856, 4029876, 4159872, 5373168, 5606784, 7164224, 8059752, 8319744, 10746336, 11213568, 14328448, 16119504, 21492672, 28656896, 32239008, 42985344, 64478016, 85970688, 128956032, 257912064]

約数ペア:

[(1, 257912064), (2, 128956032), (3, 85970688), (4, 64478016), (6, 42985344), (8, 32239008), (9, 28656896), (12, 21492672), (16, 16119504), (18, 14328448), (23, 11213568), (24, 10746336), (31, 8319744), (32, 8059752), (36, 7164224), (46, 5606784), (48, 5373168), (62, 4159872), (64, 4029876), (69, 3737856), (72, 3582112), (92, 2803392), (93, 2773248), (96, 2686584), (124, 2079936), (128, 2014938), (138, 1868928), (144, 1791056), (157, 1642752), (184, 1401696), (186, 1386624), (192, 1343292), (207, 1245952), (248, 1039968), (256, 1007469), (276, 934464), (279, 924416), (288, 895528), (314, 821376), (368, 700848), (372, 693312), (384, 671646), (414, 622976), (471, 547584), (496, 519984), (552, 467232), (558, 462208), (576, 447764), (628, 410688), (713, 361728), (736, 350424), (744, 346656), (768, 335823), (828, 311488), (942, 273792), (992, 259992), (1104, 233616), (1116, 231104), (1152, 223882), (1256, 205344), (1413, 182528), (1426, 180864), (1472, 175212), (1488, 173328), (1656, 155744), (1884, 136896), (1984, 129996), (2139, 120576), (2208, 116808), (2232, 115552), (2304, 111941), (2512, 102672), (2826, 91264), (2852, 90432), (2944, 87606), (2976, 86664), (3312, 77872), (3611, 71424), (3768, 68448), (3968, 64998), (4278, 60288), (4416, 58404), (4464, 57776), (4867, 52992), (5024, 51336), (5652, 45632), (5704, 45216), (5888, 43803), (5952, 43332), (6417, 40192), (6624, 38936), (7222, 35712), (7536, 34224), (7936, 32499), (8556, 30144), (8832, 29202), (8928, 28888), (9734, 26496), (10048, 25668), (10833, 23808), (11304, 22816), (11408, 22608), (11904, 21666), (12834, 20096), (13248, 19468), (14444, 17856), (14601, 17664), (15072, 17112)]