import numpy as np

array = np.array([[3080, 3180, 9080, 6880, 4180],
                  [2460, 1960, 9480, 6010, 3460],
                  [2720, 2820, 8920, 6120, 3320]])

按行求和

value = np.sum(array, axis=1)
print(value)

按列求和

value = np.sum(array, axis=0)
print(value)