78447740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560341}}^1$

素因数の和:560357

約数の個数: 24

約数和(自身を含む): 188274912

約数和(自身を除く): 109827172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560341, 1120682, 2241364, 2801705, 3922387, 5603410, 7844774, 11206820, 15689548, 19611935, 39223870, 78447740]

約数ペア:

[(1, 78447740), (2, 39223870), (4, 19611935), (5, 15689548), (7, 11206820), (10, 7844774), (14, 5603410), (20, 3922387), (28, 2801705), (35, 2241364), (70, 1120682), (140, 560341)]