842805

素因数分解:

$3^4\times 5^1\times {\mathrm{2081}}^1$

素因数の和:2098

約数の個数: 20

約数和(自身を含む): 1511532

約数和(自身を除く): 668727

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2081, 6243, 10405, 18729, 31215, 56187, 93645, 168561, 280935, 842805]

約数ペア:

[(1, 842805), (3, 280935), (5, 168561), (9, 93645), (15, 56187), (27, 31215), (45, 18729), (81, 10405), (135, 6243), (405, 2081)]