1286656

素因数分解:

$2^9\times 7^1\times {\mathrm{359}}^1$

素因数の和:384

約数の個数: 40

約数和(自身を含む): 2946240

約数和(自身を除く): 1659584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 359, 448, 512, 718, 896, 1436, 1792, 2513, 2872, 3584, 5026, 5744, 10052, 11488, 20104, 22976, 40208, 45952, 80416, 91904, 160832, 183808, 321664, 643328, 1286656]

約数ペア:

[(1, 1286656), (2, 643328), (4, 321664), (7, 183808), (8, 160832), (14, 91904), (16, 80416), (28, 45952), (32, 40208), (56, 22976), (64, 20104), (112, 11488), (128, 10052), (224, 5744), (256, 5026), (359, 3584), (448, 2872), (512, 2513), (718, 1792), (896, 1436)]