13001225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 17201280

約数和(自身を除く): 4200055

約数列:

[1, 5, 19, 25, 95, 101, 271, 475, 505, 1355, 1919, 2525, 5149, 6775, 9595, 25745, 27371, 47975, 128725, 136855, 520049, 684275, 2600245, 13001225]

約数ペア:

[(1, 13001225), (5, 2600245), (19, 684275), (25, 520049), (95, 136855), (101, 128725), (271, 47975), (475, 27371), (505, 25745), (1355, 9595), (1919, 6775), (2525, 5149)]