1305780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3109}}^1$

素因数の和:3128

約数の個数: 48

約数和(自身を含む): 4179840

約数和(自身を除く): 2874060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 3109, 6218, 9327, 12436, 15545, 18654, 21763, 31090, 37308, 43526, 46635, 62180, 65289, 87052, 93270, 108815, 130578, 186540, 217630, 261156, 326445, 435260, 652890, 1305780]

約数ペア:

[(1, 1305780), (2, 652890), (3, 435260), (4, 326445), (5, 261156), (6, 217630), (7, 186540), (10, 130578), (12, 108815), (14, 93270), (15, 87052), (20, 65289), (21, 62180), (28, 46635), (30, 43526), (35, 37308), (42, 31090), (60, 21763), (70, 18654), (84, 15545), (105, 12436), (140, 9327), (210, 6218), (420, 3109)]