399117824

素因数分解:

$2^9\times 7^1\times {\mathrm{193}}^1\times {\mathrm{577}}^1$

素因数の和:795

約数の個数: 80

約数和(自身を含む): 917688288

約数和(自身を除く): 518570464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 193, 224, 256, 386, 448, 512, 577, 772, 896, 1154, 1351, 1544, 1792, 2308, 2702, 3088, 3584, 4039, 4616, 5404, 6176, 8078, 9232, 10808, 12352, 16156, 18464, 21616, 24704, 32312, 36928, 43232, 49408, 64624, 73856, 86464, 98816, 111361, 129248, 147712, 172928, 222722, 258496, 295424, 345856, 445444, 516992, 691712, 779527, 890888, 1033984, 1559054, 1781776, 2067968, 3118108, 3563552, 6236216, 7127104, 12472432, 14254208, 24944864, 28508416, 49889728, 57016832, 99779456, 199558912, 399117824]

約数ペア:

[(1, 399117824), (2, 199558912), (4, 99779456), (7, 57016832), (8, 49889728), (14, 28508416), (16, 24944864), (28, 14254208), (32, 12472432), (56, 7127104), (64, 6236216), (112, 3563552), (128, 3118108), (193, 2067968), (224, 1781776), (256, 1559054), (386, 1033984), (448, 890888), (512, 779527), (577, 691712), (772, 516992), (896, 445444), (1154, 345856), (1351, 295424), (1544, 258496), (1792, 222722), (2308, 172928), (2702, 147712), (3088, 129248), (3584, 111361), (4039, 98816), (4616, 86464), (5404, 73856), (6176, 64624), (8078, 49408), (9232, 43232), (10808, 36928), (12352, 32312), (16156, 24704), (18464, 21616)]