287272580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2051947}}^1$

素因数の和:2051963

約数の個数: 24

約数和(自身を含む): 689454528

約数和(自身を除く): 402181948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2051947, 4103894, 8207788, 10259735, 14363629, 20519470, 28727258, 41038940, 57454516, 71818145, 143636290, 287272580]

約数ペア:

[(1, 287272580), (2, 143636290), (4, 71818145), (5, 57454516), (7, 41038940), (10, 28727258), (14, 20519470), (20, 14363629), (28, 10259735), (35, 8207788), (70, 4103894), (140, 2051947)]