12559780

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1279}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 26449920

約数和(自身を除く): 13890140

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1279, 1964, 2455, 2558, 4910, 5116, 6395, 9820, 12790, 25580, 627989, 1255978, 2511956, 3139945, 6279890, 12559780]

約数ペア:

[(1, 12559780), (2, 6279890), (4, 3139945), (5, 2511956), (10, 1255978), (20, 627989), (491, 25580), (982, 12790), (1279, 9820), (1964, 6395), (2455, 5116), (2558, 4910)]