28772440

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{3727}}^1$

素因数の和:3931

約数の個数: 32

約数和(自身を含む): 65090880

約数和(自身を除く): 36318440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3727, 3860, 7454, 7720, 14908, 18635, 29816, 37270, 74540, 149080, 719311, 1438622, 2877244, 3596555, 5754488, 7193110, 14386220, 28772440]

約数ペア:

[(1, 28772440), (2, 14386220), (4, 7193110), (5, 5754488), (8, 3596555), (10, 2877244), (20, 1438622), (40, 719311), (193, 149080), (386, 74540), (772, 37270), (965, 29816), (1544, 18635), (1930, 14908), (3727, 7720), (3860, 7454)]