import numpy as npnp.set_printoptions(threshold=np.inf)

with open('data.csv', 'wt') as f: writer = csv.writer(f) writer.writerows(xy)

[1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9, 3, 2, 3, 8, 4, 6, 2, 6, 4, 3, 3, 8, 3, 2, 7, 9, 5, 0, 2, 8, 8, 4, 1, 9, 7, 1, 6, 9, 3, 9, 9, 3, 7, 5, 1, 0, 5, 8, 2, 0, 9, 7, 4, 9, 4, 4, 5, 9, 2, 3, 0, 7, 8, 1, 6, 4, 0, 6, 2, 8, 6, 2, 0, 8, 9, 9…

['1', '4', '1', '5', '9', '2', '6', '5', '3', '5', '8', '9', '7', '9', '3', '2', '3', '8', '4', '6', '2', '6', '4', '3', '3', '8', '3', '2', '7', '9', '5', '0', '2', '8', '8', '4', '1', '9', '7', '1', '6', '9', '3', '9', '9', '3', '7', '5'…

素因数分解 3 * 3 * 11 * 101 約数 1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 3333, 9999