20637340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15401}}^1$

素因数の和:15477

約数の個数: 24

約数和(自身を含む): 43988112

約数和(自身を除く): 23350772

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15401, 30802, 61604, 77005, 154010, 308020, 1031867, 2063734, 4127468, 5159335, 10318670, 20637340]

約数ペア:

[(1, 20637340), (2, 10318670), (4, 5159335), (5, 4127468), (10, 2063734), (20, 1031867), (67, 308020), (134, 154010), (268, 77005), (335, 61604), (670, 30802), (1340, 15401)]