| 1 |
| u |
| 1 |
| u |
| 1 |
| u |
| 1 |
| u |
| 1 |
| u |
| 2 |
| 10 |
| 3 |
| 10 |
| 4 |
| 10 |
| 5 |
| 10 |
| 6 |
| 10 |
| 7 |
| 10 |
| 8 |
| 10 |
| 9 |
| 10 |
| 4 |
| 10 |
| 2 |
| 5 |
| 2 |
| 10 |
| 3 |
| 10 |
| 4 |
| 10 |
| 5 |
| 10 |
| 6 |
| 10 |
| 7 |
| 10 |
| 8 |
| 10 |
| 9 |
| 10 |
| 1 |
| 2 |
| 1 |
| 2 |
| 4 |
| 3 |
| 4 |
| 3 |
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 10 |
| 1 |
| 10 |
| 1 |
| 2012 |
| 1 |
| a-1 |
| 加数的个数n | S |
| 1 | 2=1×2 |
| 2 | 2+4=6=2×3 |
| 3 | 2+4+6=12=3×4 |
| 4 | 2+4+6+8=20=4×5 |
| 5 | 2+4+6+8+10=30=5×6 |
八图,是一个自然数排列的三角形数阵:根据该数阵的规律,第m行第2个数是| n(n-1) |
| 2 |
| n(n-1) |
| 2 |