6438140

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{661}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 13568352

約数和(自身を除く): 7130212

約数列:

[1, 2, 4, 5, 10, 20, 487, 661, 974, 1322, 1948, 2435, 2644, 3305, 4870, 6610, 9740, 13220, 321907, 643814, 1287628, 1609535, 3219070, 6438140]

約数ペア:

[(1, 6438140), (2, 3219070), (4, 1609535), (5, 1287628), (10, 643814), (20, 321907), (487, 13220), (661, 9740), (974, 6610), (1322, 4870), (1948, 3305), (2435, 2644)]