81353925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{21269}}^1$

素因数の和:21302

約数の個数: 36

約数和(自身を含む): 154292580

約数和(自身を除く): 72938655

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 21269, 63807, 106345, 191421, 319035, 361573, 531725, 957105, 1084719, 1595175, 1807865, 3254157, 4785525, 5423595, 9039325, 16270785, 27117975, 81353925]

約数ペア:

[(1, 81353925), (3, 27117975), (5, 16270785), (9, 9039325), (15, 5423595), (17, 4785525), (25, 3254157), (45, 1807865), (51, 1595175), (75, 1084719), (85, 957105), (153, 531725), (225, 361573), (255, 319035), (425, 191421), (765, 106345), (1275, 63807), (3825, 21269)]