18720730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{267439}}^1$

素因数の和:267453

約数の個数: 16

約数和(自身を含む): 38511360

約数和(自身を除く): 19790630

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 267439, 534878, 1337195, 1872073, 2674390, 3744146, 9360365, 18720730]

約数ペア:

[(1, 18720730), (2, 9360365), (5, 3744146), (7, 2674390), (10, 1872073), (14, 1337195), (35, 534878), (70, 267439)]