42939070

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2161}}^1$

素因数の和:4155

約数の個数: 16

約数和(自身を含む): 77365008

約数和(自身を除く): 34425938

約数列:

[1, 2, 5, 10, 1987, 2161, 3974, 4322, 9935, 10805, 19870, 21610, 4293907, 8587814, 21469535, 42939070]

約数ペア:

[(1, 42939070), (2, 21469535), (5, 8587814), (10, 4293907), (1987, 21610), (2161, 19870), (3974, 10805), (4322, 9935)]