138507740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{989341}}^1$

素因数の和:989357

約数の個数: 24

約数和(自身を含む): 332418912

約数和(自身を除く): 193911172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 989341, 1978682, 3957364, 4946705, 6925387, 9893410, 13850774, 19786820, 27701548, 34626935, 69253870, 138507740]

約数ペア:

[(1, 138507740), (2, 69253870), (4, 34626935), (5, 27701548), (7, 19786820), (10, 13850774), (14, 9893410), (20, 6925387), (28, 4946705), (35, 3957364), (70, 1978682), (140, 989341)]