42147580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15161}}^1$

素因数の和:15309

約数の個数: 24

約数和(自身を含む): 89152560

約数和(自身を除く): 47004980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 15161, 30322, 60644, 75805, 151610, 303220, 2107379, 4214758, 8429516, 10536895, 21073790, 42147580]

約数ペア:

[(1, 42147580), (2, 21073790), (4, 10536895), (5, 8429516), (10, 4214758), (20, 2107379), (139, 303220), (278, 151610), (556, 75805), (695, 60644), (1390, 30322), (2780, 15161)]