257212368

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:479

約数の個数: 240

約数和(自身を含む): 890568000

約数和(自身を除く): 633355632

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 29, 36, 42, 48, 49, 54, 56, 58, 63, 72, 84, 87, 98, 108, 112, 116, 126, 144, 147, 168, 174, 189, 196, 203, 216, 232, 252, 261, 294, 336, 348, 378, 392, 406, 419, 432, 441, 464, 504, 522, 588, 609, 696, 756, 783, 784, 812, 838, 882, 1008, 1044, 1176, 1218, 1257, 1323, 1392, 1421, 1512, 1566, 1624, 1676, 1764, 1827, 2088, 2352, 2436, 2514, 2646, 2842, 2933, 3024, 3132, 3248, 3352, 3528, 3654, 3771, 4176, 4263, 4872, 5028, 5292, 5481, 5684, 5866, 6264, 6704, 7056, 7308, 7542, 8526, 8799, 9744, 10056, 10584, 10962, 11313, 11368, 11732, 12151, 12528, 12789, 14616, 15084, 17052, 17598, 20112, 20531, 21168, 21924, 22626, 22736, 23464, 24302, 25578, 26397, 29232, 30168, 34104, 35196, 36453, 38367, 41062, 43848, 45252, 46928, 48604, 51156, 52794, 60336, 61593, 68208, 70392, 72906, 76734, 79191, 82124, 85057, 87696, 90504, 97208, 102312, 105588, 109359, 123186, 140784, 145812, 153468, 158382, 164248, 170114, 181008, 184779, 194416, 204624, 211176, 218718, 246372, 255171, 291624, 306936, 316764, 328077, 328496, 340228, 369558, 422352, 437436, 492744, 510342, 554337, 583248, 595399, 613872, 633528, 656154, 680456, 739116, 765513, 874872, 985488, 1020684, 1108674, 1190798, 1267056, 1312308, 1360912, 1478232, 1531026, 1749744, 1786197, 2041368, 2217348, 2296539, 2381596, 2624616, 2956464, 3062052, 3572394, 4082736, 4434696, 4593078, 4763192, 5249232, 5358591, 6124104, 7144788, 8869392, 9186156, 9526384, 10717182, 12248208, 14289576, 16075773, 18372312, 21434364, 28579152, 32151546, 36744624, 42868728, 64303092, 85737456, 128606184, 257212368]

約数ペア:

[(1, 257212368), (2, 128606184), (3, 85737456), (4, 64303092), (6, 42868728), (7, 36744624), (8, 32151546), (9, 28579152), (12, 21434364), (14, 18372312), (16, 16075773), (18, 14289576), (21, 12248208), (24, 10717182), (27, 9526384), (28, 9186156), (29, 8869392), (36, 7144788), (42, 6124104), (48, 5358591), (49, 5249232), (54, 4763192), (56, 4593078), (58, 4434696), (63, 4082736), (72, 3572394), (84, 3062052), (87, 2956464), (98, 2624616), (108, 2381596), (112, 2296539), (116, 2217348), (126, 2041368), (144, 1786197), (147, 1749744), (168, 1531026), (174, 1478232), (189, 1360912), (196, 1312308), (203, 1267056), (216, 1190798), (232, 1108674), (252, 1020684), (261, 985488), (294, 874872), (336, 765513), (348, 739116), (378, 680456), (392, 656154), (406, 633528), (419, 613872), (432, 595399), (441, 583248), (464, 554337), (504, 510342), (522, 492744), (588, 437436), (609, 422352), (696, 369558), (756, 340228), (783, 328496), (784, 328077), (812, 316764), (838, 306936), (882, 291624), (1008, 255171), (1044, 246372), (1176, 218718), (1218, 211176), (1257, 204624), (1323, 194416), (1392, 184779), (1421, 181008), (1512, 170114), (1566, 164248), (1624, 158382), (1676, 153468), (1764, 145812), (1827, 140784), (2088, 123186), (2352, 109359), (2436, 105588), (2514, 102312), (2646, 97208), (2842, 90504), (2933, 87696), (3024, 85057), (3132, 82124), (3248, 79191), (3352, 76734), (3528, 72906), (3654, 70392), (3771, 68208), (4176, 61593), (4263, 60336), (4872, 52794), (5028, 51156), (5292, 48604), (5481, 46928), (5684, 45252), (5866, 43848), (6264, 41062), (6704, 38367), (7056, 36453), (7308, 35196), (7542, 34104), (8526, 30168), (8799, 29232), (9744, 26397), (10056, 25578), (10584, 24302), (10962, 23464), (11313, 22736), (11368, 22626), (11732, 21924), (12151, 21168), (12528, 20531), (12789, 20112), (14616, 17598), (15084, 17052)]