28893205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 11910635

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 473, 643, 817, 1045, 2365, 3215, 4085, 7073, 8987, 12217, 27649, 35365, 44935, 61085, 134387, 138245, 304139, 525331, 671935, 1520695, 2626655, 5778641, 28893205]

約数ペア:

[(1, 28893205), (5, 5778641), (11, 2626655), (19, 1520695), (43, 671935), (55, 525331), (95, 304139), (209, 138245), (215, 134387), (473, 61085), (643, 44935), (817, 35365), (1045, 27649), (2365, 12217), (3215, 8987), (4085, 7073)]