205890255

素因数分解:

$3^5\times 5^1\times {\mathrm{169457}}^1$

素因数の和:169477

約数の個数: 24

約数和(自身を含む): 370096272

約数和(自身を除く): 164206017

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 169457, 508371, 847285, 1525113, 2541855, 4575339, 7625565, 13726017, 22876695, 41178051, 68630085, 205890255]

約数ペア:

[(1, 205890255), (3, 68630085), (5, 41178051), (9, 22876695), (15, 13726017), (27, 7625565), (45, 4575339), (81, 2541855), (135, 1525113), (243, 847285), (405, 508371), (1215, 169457)]