256621545

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{335453}}^1$

素因数の和:335481

約数の個数: 24

約数和(自身を含む): 470977416

約数和(自身を除く): 214355871

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 335453, 1006359, 1677265, 3019077, 5031795, 5702701, 15095385, 17108103, 28513505, 51324309, 85540515, 256621545]

約数ペア:

[(1, 256621545), (3, 85540515), (5, 51324309), (9, 28513505), (15, 17108103), (17, 15095385), (45, 5702701), (51, 5031795), (85, 3019077), (153, 1677265), (255, 1006359), (765, 335453)]