820935

素因数分解:

$3^4\times 5^1\times {\mathrm{2027}}^1$

素因数の和:2044

約数の個数: 20

約数和(自身を含む): 1472328

約数和(自身を除く): 651393

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2027, 6081, 10135, 18243, 30405, 54729, 91215, 164187, 273645, 820935]

約数ペア:

[(1, 820935), (3, 273645), (5, 164187), (9, 91215), (15, 54729), (27, 30405), (45, 18243), (81, 10135), (135, 6081), (405, 2027)]