20468740

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1871}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 43085952

約数和(自身を除く): 22617212

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 1871, 2188, 2735, 3742, 5470, 7484, 9355, 10940, 18710, 37420, 1023437, 2046874, 4093748, 5117185, 10234370, 20468740]

約数ペア:

[(1, 20468740), (2, 10234370), (4, 5117185), (5, 4093748), (10, 2046874), (20, 1023437), (547, 37420), (1094, 18710), (1871, 10940), (2188, 9355), (2735, 7484), (3742, 5470)]