19784576

素因数分解:

$2^7\times 7^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 26041984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 284, 311, 448, 497, 568, 622, 896, 994, 1136, 1244, 1988, 2177, 2272, 2488, 3976, 4354, 4544, 4976, 7952, 8708, 9088, 9952, 15904, 17416, 19904, 22081, 31808, 34832, 39808, 44162, 63616, 69664, 88324, 139328, 154567, 176648, 278656, 309134, 353296, 618268, 706592, 1236536, 1413184, 2473072, 2826368, 4946144, 9892288, 19784576]

約数ペア:

[(1, 19784576), (2, 9892288), (4, 4946144), (7, 2826368), (8, 2473072), (14, 1413184), (16, 1236536), (28, 706592), (32, 618268), (56, 353296), (64, 309134), (71, 278656), (112, 176648), (128, 154567), (142, 139328), (224, 88324), (284, 69664), (311, 63616), (448, 44162), (497, 39808), (568, 34832), (622, 31808), (896, 22081), (994, 19904), (1136, 17416), (1244, 15904), (1988, 9952), (2177, 9088), (2272, 8708), (2488, 7952), (3976, 4976), (4354, 4544)]