80720336

素因数分解:

$2^4\times {\mathrm{1583}}^1\times {\mathrm{3187}}^1$

素因数の和:4778

約数の個数: 20

約数和(自身を含む): 156543552

約数和(自身を除く): 75823216

約数列:

[1, 2, 4, 8, 16, 1583, 3166, 3187, 6332, 6374, 12664, 12748, 25328, 25496, 50992, 5045021, 10090042, 20180084, 40360168, 80720336]

約数ペア:

[(1, 80720336), (2, 40360168), (4, 20180084), (8, 10090042), (16, 5045021), (1583, 50992), (3166, 25496), (3187, 25328), (6332, 12748), (6374, 12664)]