25563212

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 47040000

約数和(自身を除く): 21476788

約数列:

[1, 2, 4, 23, 46, 92, 139, 278, 556, 1999, 3197, 3998, 6394, 7996, 12788, 45977, 91954, 183908, 277861, 555722, 1111444, 6390803, 12781606, 25563212]

約数ペア:

[(1, 25563212), (2, 12781606), (4, 6390803), (23, 1111444), (46, 555722), (92, 277861), (139, 183908), (278, 91954), (556, 45977), (1999, 12788), (3197, 7996), (3998, 6394)]