12738560

素因数分解:

$2^{13}\times 5^1\times {\mathrm{311}}^1$

素因数の和:342

約数の個数: 56

約数和(自身を含む): 30668976

約数和(自身を除く): 17930416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 311, 320, 512, 622, 640, 1024, 1244, 1280, 1555, 2048, 2488, 2560, 3110, 4096, 4976, 5120, 6220, 8192, 9952, 10240, 12440, 19904, 20480, 24880, 39808, 40960, 49760, 79616, 99520, 159232, 199040, 318464, 398080, 636928, 796160, 1273856, 1592320, 2547712, 3184640, 6369280, 12738560]

約数ペア:

[(1, 12738560), (2, 6369280), (4, 3184640), (5, 2547712), (8, 1592320), (10, 1273856), (16, 796160), (20, 636928), (32, 398080), (40, 318464), (64, 199040), (80, 159232), (128, 99520), (160, 79616), (256, 49760), (311, 40960), (320, 39808), (512, 24880), (622, 20480), (640, 19904), (1024, 12440), (1244, 10240), (1280, 9952), (1555, 8192), (2048, 6220), (2488, 5120), (2560, 4976), (3110, 4096)]