257475456

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:426

約数の個数: 256

約数和(自身を含む): 900864000

約数和(自身を除く): 643388544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 29, 32, 36, 42, 48, 54, 56, 58, 63, 64, 72, 84, 87, 96, 108, 112, 116, 126, 128, 144, 168, 174, 189, 192, 203, 216, 224, 232, 252, 261, 288, 336, 348, 367, 378, 384, 406, 432, 448, 464, 504, 522, 576, 609, 672, 696, 734, 756, 783, 812, 864, 896, 928, 1008, 1044, 1101, 1152, 1218, 1344, 1392, 1468, 1512, 1566, 1624, 1728, 1827, 1856, 2016, 2088, 2202, 2436, 2569, 2688, 2784, 2936, 3024, 3132, 3248, 3303, 3456, 3654, 3712, 4032, 4176, 4404, 4872, 5138, 5481, 5568, 5872, 6048, 6264, 6496, 6606, 7308, 7707, 8064, 8352, 8808, 9744, 9909, 10276, 10643, 10962, 11136, 11744, 12096, 12528, 12992, 13212, 14616, 15414, 16704, 17616, 19488, 19818, 20552, 21286, 21924, 23121, 23488, 24192, 25056, 25984, 26424, 29232, 30828, 31929, 33408, 35232, 38976, 39636, 41104, 42572, 43848, 46242, 46976, 50112, 52848, 58464, 61656, 63858, 69363, 70464, 74501, 77952, 79272, 82208, 85144, 87696, 92484, 95787, 100224, 105696, 116928, 123312, 127716, 138726, 140928, 149002, 158544, 164416, 170288, 175392, 184968, 191574, 211392, 223503, 233856, 246624, 255432, 277452, 287361, 298004, 317088, 328832, 340576, 350784, 369936, 383148, 422784, 447006, 493248, 510864, 554904, 574722, 596008, 634176, 670509, 681152, 701568, 739872, 766296, 894012, 986496, 1021728, 1109808, 1149444, 1192016, 1268352, 1341018, 1362304, 1479744, 1532592, 1788024, 2011527, 2043456, 2219616, 2298888, 2384032, 2682036, 2959488, 3065184, 3576048, 4023054, 4086912, 4439232, 4597776, 4768064, 5364072, 6130368, 7152096, 8046108, 8878464, 9195552, 9536128, 10728144, 12260736, 14304192, 16092216, 18391104, 21456288, 28608384, 32184432, 36782208, 42912576, 64368864, 85825152, 128737728, 257475456]

約数ペア:

[(1, 257475456), (2, 128737728), (3, 85825152), (4, 64368864), (6, 42912576), (7, 36782208), (8, 32184432), (9, 28608384), (12, 21456288), (14, 18391104), (16, 16092216), (18, 14304192), (21, 12260736), (24, 10728144), (27, 9536128), (28, 9195552), (29, 8878464), (32, 8046108), (36, 7152096), (42, 6130368), (48, 5364072), (54, 4768064), (56, 4597776), (58, 4439232), (63, 4086912), (64, 4023054), (72, 3576048), (84, 3065184), (87, 2959488), (96, 2682036), (108, 2384032), (112, 2298888), (116, 2219616), (126, 2043456), (128, 2011527), (144, 1788024), (168, 1532592), (174, 1479744), (189, 1362304), (192, 1341018), (203, 1268352), (216, 1192016), (224, 1149444), (232, 1109808), (252, 1021728), (261, 986496), (288, 894012), (336, 766296), (348, 739872), (367, 701568), (378, 681152), (384, 670509), (406, 634176), (432, 596008), (448, 574722), (464, 554904), (504, 510864), (522, 493248), (576, 447006), (609, 422784), (672, 383148), (696, 369936), (734, 350784), (756, 340576), (783, 328832), (812, 317088), (864, 298004), (896, 287361), (928, 277452), (1008, 255432), (1044, 246624), (1101, 233856), (1152, 223503), (1218, 211392), (1344, 191574), (1392, 184968), (1468, 175392), (1512, 170288), (1566, 164416), (1624, 158544), (1728, 149002), (1827, 140928), (1856, 138726), (2016, 127716), (2088, 123312), (2202, 116928), (2436, 105696), (2569, 100224), (2688, 95787), (2784, 92484), (2936, 87696), (3024, 85144), (3132, 82208), (3248, 79272), (3303, 77952), (3456, 74501), (3654, 70464), (3712, 69363), (4032, 63858), (4176, 61656), (4404, 58464), (4872, 52848), (5138, 50112), (5481, 46976), (5568, 46242), (5872, 43848), (6048, 42572), (6264, 41104), (6496, 39636), (6606, 38976), (7308, 35232), (7707, 33408), (8064, 31929), (8352, 30828), (8808, 29232), (9744, 26424), (9909, 25984), (10276, 25056), (10643, 24192), (10962, 23488), (11136, 23121), (11744, 21924), (12096, 21286), (12528, 20552), (12992, 19818), (13212, 19488), (14616, 17616), (15414, 16704)]