205785

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 379080

約数和(自身を除く): 173295

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 269, 765, 807, 1345, 2421, 4035, 4573, 12105, 13719, 22865, 41157, 68595, 205785]

約数ペア:

[(1, 205785), (3, 68595), (5, 41157), (9, 22865), (15, 13719), (17, 12105), (45, 4573), (51, 4035), (85, 2421), (153, 1345), (255, 807), (269, 765)]