12740588

素因数分解:

$2^2\times 7^2\times {\mathrm{65003}}^1$

素因数の和:65021

約数の個数: 18

約数和(自身を含む): 25936596

約数和(自身を除く): 13196008

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 65003, 130006, 260012, 455021, 910042, 1820084, 3185147, 6370294, 12740588]

約数ペア:

[(1, 12740588), (2, 6370294), (4, 3185147), (7, 1820084), (14, 910042), (28, 455021), (49, 260012), (98, 130006), (196, 65003)]