28169515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{277}}^1$

素因数の和:379

約数の個数: 24

約数和(自身を含む): 37890288

約数和(自身を除く): 9720773

約数列:

[1, 5, 11, 43, 55, 215, 277, 473, 1385, 1849, 2365, 3047, 9245, 11911, 15235, 20339, 59555, 101695, 131021, 512173, 655105, 2560865, 5633903, 28169515]

約数ペア:

[(1, 28169515), (5, 5633903), (11, 2560865), (43, 655105), (55, 512173), (215, 131021), (277, 101695), (473, 59555), (1385, 20339), (1849, 15235), (2365, 11911), (3047, 9245)]