1279742456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{9409871}}^1$

素因数の和:9409894

約数の個数: 16

約数和(自身を含む): 2540665440

約数和(自身を除く): 1260922984

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 9409871, 18819742, 37639484, 75278968, 159967807, 319935614, 639871228, 1279742456]

約数ペア:

[(1, 1279742456), (2, 639871228), (4, 319935614), (8, 159967807), (17, 75278968), (34, 37639484), (68, 18819742), (136, 9409871)]