26986220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12379}}^1$

素因数の和:12497

約数の個数: 24

約数和(自身を含む): 57195600

約数和(自身を除く): 30209380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 12379, 24758, 49516, 61895, 123790, 247580, 1349311, 2698622, 5397244, 6746555, 13493110, 26986220]

約数ペア:

[(1, 26986220), (2, 13493110), (4, 6746555), (5, 5397244), (10, 2698622), (20, 1349311), (109, 247580), (218, 123790), (436, 61895), (545, 49516), (1090, 24758), (2180, 12379)]