18107740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129341}}^1$

素因数の和:129357

約数の個数: 24

約数和(自身を含む): 43458912

約数和(自身を除く): 25351172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129341, 258682, 517364, 646705, 905387, 1293410, 1810774, 2586820, 3621548, 4526935, 9053870, 18107740]

約数ペア:

[(1, 18107740), (2, 9053870), (4, 4526935), (5, 3621548), (7, 2586820), (10, 1810774), (14, 1293410), (20, 905387), (28, 646705), (35, 517364), (70, 258682), (140, 129341)]