71371580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509797}}^1$

素因数の和:509813

約数の個数: 24

約数和(自身を含む): 171292128

約数和(自身を除く): 99920548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509797, 1019594, 2039188, 2548985, 3568579, 5097970, 7137158, 10195940, 14274316, 17842895, 35685790, 71371580]

約数ペア:

[(1, 71371580), (2, 35685790), (4, 17842895), (5, 14274316), (7, 10195940), (10, 7137158), (14, 5097970), (20, 3568579), (28, 2548985), (35, 2039188), (70, 1019594), (140, 509797)]