25220565

素因数分解:

$3^4\times 5^1\times {\mathrm{62273}}^1$

素因数の和:62290

約数の個数: 20

約数和(自身を含む): 45210924

約数和(自身を除く): 19990359

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 62273, 186819, 311365, 560457, 934095, 1681371, 2802285, 5044113, 8406855, 25220565]

約数ペア:

[(1, 25220565), (3, 8406855), (5, 5044113), (9, 2802285), (15, 1681371), (27, 934095), (45, 560457), (81, 311365), (135, 186819), (405, 62273)]