217061740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1550441}}^1$

素因数の和:1550457

約数の個数: 24

約数和(自身を含む): 520948512

約数和(自身を除く): 303886772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1550441, 3100882, 6201764, 7752205, 10853087, 15504410, 21706174, 31008820, 43412348, 54265435, 108530870, 217061740]

約数ペア:

[(1, 217061740), (2, 108530870), (4, 54265435), (5, 43412348), (7, 31008820), (10, 21706174), (14, 15504410), (20, 10853087), (28, 7752205), (35, 6201764), (70, 3100882), (140, 1550441)]