28381155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 52604160

約数和(自身を除く): 24223005

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 121, 165, 209, 285, 363, 605, 627, 823, 1045, 1815, 2299, 2469, 3135, 4115, 6897, 9053, 11495, 12345, 15637, 27159, 34485, 45265, 46911, 78185, 99583, 135795, 172007, 234555, 298749, 497915, 516021, 860035, 1493745, 1892077, 2580105, 5676231, 9460385, 28381155]

約数ペア:

[(1, 28381155), (3, 9460385), (5, 5676231), (11, 2580105), (15, 1892077), (19, 1493745), (33, 860035), (55, 516021), (57, 497915), (95, 298749), (121, 234555), (165, 172007), (209, 135795), (285, 99583), (363, 78185), (605, 46911), (627, 45265), (823, 34485), (1045, 27159), (1815, 15637), (2299, 12345), (2469, 11495), (3135, 9053), (4115, 6897)]