20382220

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2887}}^1$

素因数の和:3249

約数の個数: 24

約数和(自身を含む): 42938784

約数和(自身を除く): 22556564

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2887, 3530, 5774, 7060, 11548, 14435, 28870, 57740, 1019111, 2038222, 4076444, 5095555, 10191110, 20382220]

約数ペア:

[(1, 20382220), (2, 10191110), (4, 5095555), (5, 4076444), (10, 2038222), (20, 1019111), (353, 57740), (706, 28870), (1412, 14435), (1765, 11548), (2887, 7060), (3530, 5774)]