390656

素因数分解:

$2^9\times 7^1\times {\mathrm{109}}^1$

素因数の和:134

約数の個数: 40

約数和(自身を含む): 900240

約数和(自身を除く): 509584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 128, 218, 224, 256, 436, 448, 512, 763, 872, 896, 1526, 1744, 1792, 3052, 3488, 3584, 6104, 6976, 12208, 13952, 24416, 27904, 48832, 55808, 97664, 195328, 390656]

約数ペア:

[(1, 390656), (2, 195328), (4, 97664), (7, 55808), (8, 48832), (14, 27904), (16, 24416), (28, 13952), (32, 12208), (56, 6976), (64, 6104), (109, 3584), (112, 3488), (128, 3052), (218, 1792), (224, 1744), (256, 1526), (436, 896), (448, 872), (512, 763)]