280720128

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:970

約数の個数: 144

約数和(自身を含む): 831466496

約数和(自身を除く): 550746368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 104, 124, 128, 156, 186, 192, 208, 248, 256, 312, 372, 384, 403, 416, 496, 624, 744, 768, 806, 832, 907, 992, 1209, 1248, 1488, 1612, 1664, 1814, 1984, 2418, 2496, 2721, 2976, 3224, 3328, 3628, 3968, 4836, 4992, 5442, 5952, 6448, 7256, 7936, 9672, 9984, 10884, 11791, 11904, 12896, 14512, 19344, 21768, 23582, 23808, 25792, 28117, 29024, 35373, 38688, 43536, 47164, 51584, 56234, 58048, 70746, 77376, 84351, 87072, 94328, 103168, 112468, 116096, 141492, 154752, 168702, 174144, 188656, 224936, 232192, 282984, 309504, 337404, 348288, 365521, 377312, 449872, 565968, 674808, 696576, 731042, 754624, 899744, 1096563, 1131936, 1349616, 1462084, 1509248, 1799488, 2193126, 2263872, 2699232, 2924168, 3018496, 3598976, 4386252, 4527744, 5398464, 5848336, 7197952, 8772504, 9055488, 10796928, 11696672, 17545008, 21593856, 23393344, 35090016, 46786688, 70180032, 93573376, 140360064, 280720128]

約数ペア:

[(1, 280720128), (2, 140360064), (3, 93573376), (4, 70180032), (6, 46786688), (8, 35090016), (12, 23393344), (13, 21593856), (16, 17545008), (24, 11696672), (26, 10796928), (31, 9055488), (32, 8772504), (39, 7197952), (48, 5848336), (52, 5398464), (62, 4527744), (64, 4386252), (78, 3598976), (93, 3018496), (96, 2924168), (104, 2699232), (124, 2263872), (128, 2193126), (156, 1799488), (186, 1509248), (192, 1462084), (208, 1349616), (248, 1131936), (256, 1096563), (312, 899744), (372, 754624), (384, 731042), (403, 696576), (416, 674808), (496, 565968), (624, 449872), (744, 377312), (768, 365521), (806, 348288), (832, 337404), (907, 309504), (992, 282984), (1209, 232192), (1248, 224936), (1488, 188656), (1612, 174144), (1664, 168702), (1814, 154752), (1984, 141492), (2418, 116096), (2496, 112468), (2721, 103168), (2976, 94328), (3224, 87072), (3328, 84351), (3628, 77376), (3968, 70746), (4836, 58048), (4992, 56234), (5442, 51584), (5952, 47164), (6448, 43536), (7256, 38688), (7936, 35373), (9672, 29024), (9984, 28117), (10884, 25792), (11791, 23808), (11904, 23582), (12896, 21768), (14512, 19344)]