25780940

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{6679}}^1$

素因数の和:6881

約数の個数: 24

約数和(自身を含む): 54428640

約数和(自身を除く): 28647700

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 6679, 13358, 26716, 33395, 66790, 133580, 1289047, 2578094, 5156188, 6445235, 12890470, 25780940]

約数ペア:

[(1, 25780940), (2, 12890470), (4, 6445235), (5, 5156188), (10, 2578094), (20, 1289047), (193, 133580), (386, 66790), (772, 33395), (965, 26716), (1930, 13358), (3860, 6679)]