20907740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149341}}^1$

素因数の和:149357

約数の個数: 24

約数和(自身を含む): 50178912

約数和(自身を除く): 29271172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149341, 298682, 597364, 746705, 1045387, 1493410, 2090774, 2986820, 4181548, 5226935, 10453870, 20907740]

約数ペア:

[(1, 20907740), (2, 10453870), (4, 5226935), (5, 4181548), (7, 2986820), (10, 2090774), (14, 1493410), (20, 1045387), (28, 746705), (35, 597364), (70, 298682), (140, 149341)]