128567740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{918341}}^1$

素因数の和:918357

約数の個数: 24

約数和(自身を含む): 308562912

約数和(自身を除く): 179995172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 918341, 1836682, 3673364, 4591705, 6428387, 9183410, 12856774, 18366820, 25713548, 32141935, 64283870, 128567740]

約数ペア:

[(1, 128567740), (2, 64283870), (4, 32141935), (5, 25713548), (7, 18366820), (10, 12856774), (14, 9183410), (20, 6428387), (28, 4591705), (35, 3673364), (70, 1836682), (140, 918341)]