78873604

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{1117}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 140241920

約数和(自身を除く): 61368316

約数列:

[1, 2, 4, 127, 139, 254, 278, 508, 556, 1117, 2234, 4468, 17653, 35306, 70612, 141859, 155263, 283718, 310526, 567436, 621052, 19718401, 39436802, 78873604]

約数ペア:

[(1, 78873604), (2, 39436802), (4, 19718401), (127, 621052), (139, 567436), (254, 310526), (278, 283718), (508, 155263), (556, 141859), (1117, 70612), (2234, 35306), (4468, 17653)]