257919984

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^2$

素因数の和:177

約数の個数: 240

約数和(自身を含む): 904108800

約数和(自身を除く): 646188816

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 36, 38, 42, 48, 54, 56, 57, 63, 67, 72, 76, 84, 108, 112, 114, 126, 133, 134, 144, 152, 168, 171, 189, 201, 216, 228, 252, 266, 268, 304, 336, 342, 378, 399, 402, 432, 456, 469, 504, 513, 532, 536, 603, 684, 756, 798, 804, 912, 938, 1008, 1026, 1064, 1072, 1197, 1206, 1273, 1368, 1407, 1512, 1596, 1608, 1809, 1876, 2052, 2128, 2394, 2412, 2546, 2736, 2814, 3024, 3192, 3216, 3591, 3618, 3752, 3819, 4104, 4221, 4489, 4788, 4824, 5092, 5628, 6384, 7182, 7236, 7504, 7638, 8208, 8442, 8911, 8978, 9576, 9648, 10184, 11256, 11457, 12663, 13467, 14364, 14472, 15276, 16884, 17822, 17956, 19152, 20368, 22512, 22914, 25326, 26733, 26934, 28728, 28944, 30552, 31423, 33768, 34371, 35644, 35912, 40401, 45828, 50652, 53466, 53868, 57456, 61104, 62846, 67536, 68742, 71288, 71824, 80199, 80802, 85291, 91656, 94269, 101304, 106932, 107736, 121203, 125692, 137484, 142576, 160398, 161604, 170582, 183312, 188538, 202608, 213864, 215472, 240597, 242406, 251384, 255873, 274968, 282807, 320796, 323208, 341164, 377076, 427728, 481194, 484812, 502768, 511746, 549936, 565614, 597037, 641592, 646416, 682328, 754152, 767619, 848421, 962388, 969624, 1023492, 1131228, 1194074, 1283184, 1364656, 1508304, 1535238, 1696842, 1791111, 1924776, 1939248, 2046984, 2262456, 2302857, 2388148, 3070476, 3393684, 3582222, 3849552, 4093968, 4524912, 4605714, 4776296, 5373333, 6140952, 6787368, 7164444, 9211428, 9552592, 10746666, 12281904, 13574736, 14328888, 16119999, 18422856, 21493332, 28657776, 32239998, 36845712, 42986664, 64479996, 85973328, 128959992, 257919984]

約数ペア:

[(1, 257919984), (2, 128959992), (3, 85973328), (4, 64479996), (6, 42986664), (7, 36845712), (8, 32239998), (9, 28657776), (12, 21493332), (14, 18422856), (16, 16119999), (18, 14328888), (19, 13574736), (21, 12281904), (24, 10746666), (27, 9552592), (28, 9211428), (36, 7164444), (38, 6787368), (42, 6140952), (48, 5373333), (54, 4776296), (56, 4605714), (57, 4524912), (63, 4093968), (67, 3849552), (72, 3582222), (76, 3393684), (84, 3070476), (108, 2388148), (112, 2302857), (114, 2262456), (126, 2046984), (133, 1939248), (134, 1924776), (144, 1791111), (152, 1696842), (168, 1535238), (171, 1508304), (189, 1364656), (201, 1283184), (216, 1194074), (228, 1131228), (252, 1023492), (266, 969624), (268, 962388), (304, 848421), (336, 767619), (342, 754152), (378, 682328), (399, 646416), (402, 641592), (432, 597037), (456, 565614), (469, 549936), (504, 511746), (513, 502768), (532, 484812), (536, 481194), (603, 427728), (684, 377076), (756, 341164), (798, 323208), (804, 320796), (912, 282807), (938, 274968), (1008, 255873), (1026, 251384), (1064, 242406), (1072, 240597), (1197, 215472), (1206, 213864), (1273, 202608), (1368, 188538), (1407, 183312), (1512, 170582), (1596, 161604), (1608, 160398), (1809, 142576), (1876, 137484), (2052, 125692), (2128, 121203), (2394, 107736), (2412, 106932), (2546, 101304), (2736, 94269), (2814, 91656), (3024, 85291), (3192, 80802), (3216, 80199), (3591, 71824), (3618, 71288), (3752, 68742), (3819, 67536), (4104, 62846), (4221, 61104), (4489, 57456), (4788, 53868), (4824, 53466), (5092, 50652), (5628, 45828), (6384, 40401), (7182, 35912), (7236, 35644), (7504, 34371), (7638, 33768), (8208, 31423), (8442, 30552), (8911, 28944), (8978, 28728), (9576, 26934), (9648, 26733), (10184, 25326), (11256, 22914), (11457, 22512), (12663, 20368), (13467, 19152), (14364, 17956), (14472, 17822), (15276, 16884)]