25340740

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{18911}}^1$

素因数の和:18987

約数の個数: 24

約数和(自身を含む): 54012672

約数和(自身を除く): 28671932

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 18911, 37822, 75644, 94555, 189110, 378220, 1267037, 2534074, 5068148, 6335185, 12670370, 25340740]

約数ペア:

[(1, 25340740), (2, 12670370), (4, 6335185), (5, 5068148), (10, 2534074), (20, 1267037), (67, 378220), (134, 189110), (268, 94555), (335, 75644), (670, 37822), (1340, 18911)]