4464640

素因数分解:

$2^{13}\times 5^1\times {\mathrm{109}}^1$

素因数の和:140

約数の個数: 56

約数和(自身を含む): 10812780

約数和(自身を除く): 6348140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 872, 1024, 1090, 1280, 1744, 2048, 2180, 2560, 3488, 4096, 4360, 5120, 6976, 8192, 8720, 10240, 13952, 17440, 20480, 27904, 34880, 40960, 55808, 69760, 111616, 139520, 223232, 279040, 446464, 558080, 892928, 1116160, 2232320, 4464640]

約数ペア:

[(1, 4464640), (2, 2232320), (4, 1116160), (5, 892928), (8, 558080), (10, 446464), (16, 279040), (20, 223232), (32, 139520), (40, 111616), (64, 69760), (80, 55808), (109, 40960), (128, 34880), (160, 27904), (218, 20480), (256, 17440), (320, 13952), (436, 10240), (512, 8720), (545, 8192), (640, 6976), (872, 5120), (1024, 4360), (1090, 4096), (1280, 3488), (1744, 2560), (2048, 2180)]