25687540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13241}}^1$

素因数の和:13347

約数の個数: 24

約数和(自身を含む): 54504072

約数和(自身を除く): 28816532

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 13241, 26482, 52964, 66205, 132410, 264820, 1284377, 2568754, 5137508, 6421885, 12843770, 25687540]

約数ペア:

[(1, 25687540), (2, 12843770), (4, 6421885), (5, 5137508), (10, 2568754), (20, 1284377), (97, 264820), (194, 132410), (388, 66205), (485, 52964), (970, 26482), (1940, 13241)]