25538780

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1307}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 53727408

約数和(自身を除く): 28188628

約数列:

[1, 2, 4, 5, 10, 20, 977, 1307, 1954, 2614, 3908, 4885, 5228, 6535, 9770, 13070, 19540, 26140, 1276939, 2553878, 5107756, 6384695, 12769390, 25538780]

約数ペア:

[(1, 25538780), (2, 12769390), (4, 6384695), (5, 5107756), (10, 2553878), (20, 1276939), (977, 26140), (1307, 19540), (1954, 13070), (2614, 9770), (3908, 6535), (4885, 5228)]