20806301740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148616441}}^1$

素因数の和:148616457

約数の個数: 24

約数和(自身を含む): 49935124512

約数和(自身を除く): 29128822772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148616441, 297232882, 594465764, 743082205, 1040315087, 1486164410, 2080630174, 2972328820, 4161260348, 5201575435, 10403150870, 20806301740]

約数ペア:

[(1, 20806301740), (2, 10403150870), (4, 5201575435), (5, 4161260348), (7, 2972328820), (10, 2080630174), (14, 1486164410), (20, 1040315087), (28, 743082205), (35, 594465764), (70, 297232882), (140, 148616441)]