165645

素因数分解:

$3^4\times 5^1\times {\mathrm{409}}^1$

素因数の和:426

約数の個数: 20

約数和(自身を含む): 297660

約数和(自身を除く): 132015

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 409, 1227, 2045, 3681, 6135, 11043, 18405, 33129, 55215, 165645]

約数ペア:

[(1, 165645), (3, 55215), (5, 33129), (9, 18405), (15, 11043), (27, 6135), (45, 3681), (81, 2045), (135, 1227), (405, 409)]