12980540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{6691}}^1$

素因数の和:6797

約数の個数: 24

約数和(自身を含む): 27544272

約数和(自身を除く): 14563732

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 6691, 13382, 26764, 33455, 66910, 133820, 649027, 1298054, 2596108, 3245135, 6490270, 12980540]

約数ペア:

[(1, 12980540), (2, 6490270), (4, 3245135), (5, 2596108), (10, 1298054), (20, 649027), (97, 133820), (194, 66910), (388, 33455), (485, 26764), (970, 13382), (1940, 6691)]