20767220

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^2$

素因数の和:2047

約数の個数: 18

約数和(自身を含む): 43654002

約数和(自身を除く): 22886782

約数列:

[1, 2, 4, 5, 10, 20, 1019, 2038, 4076, 5095, 10190, 20380, 1038361, 2076722, 4153444, 5191805, 10383610, 20767220]

約数ペア:

[(1, 20767220), (2, 10383610), (4, 5191805), (5, 4153444), (10, 2076722), (20, 1038361), (1019, 20380), (2038, 10190), (4076, 5095)]