(a + 1) (a ^ 2 + 1) (a ^ 4 + 1) ` Where a is not equal to 0

（a+1)(a^2+1)(a^4+1）`````（a^1024+1)
=（a+1)(a^2+1)(a^4+1）`````（a^1024+1)(a-1)/(a-1)
=（a^2-1)(a^2+1)(a^4+1）`````（a^1024+1)/(a-1)
=（a^4-1)(a^4+1）`````（a^1024+1)/(a-1)
=（a^8-1)`````（a^1024+1)/(a-1)
=（a^1024-1)`````（a^1024+1)/(a-1)
=（a^2048-1)/(a-1)