12668215

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1783}}^1$

素因数の和:1831

約数の個数: 24

約数和(自身を含む): 18303840

約数和(自身を除く): 5635625

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 1783, 7105, 8915, 12481, 51707, 62405, 87367, 258535, 361949, 436835, 1809745, 2533643, 12668215]

約数ペア:

[(1, 12668215), (5, 2533643), (7, 1809745), (29, 436835), (35, 361949), (49, 258535), (145, 87367), (203, 62405), (245, 51707), (1015, 12481), (1421, 8915), (1783, 7105)]