2720385

素因数分解:

$3^5\times 5^1\times {\mathrm{2239}}^1$

素因数の和:2259

約数の個数: 24

約数和(自身を含む): 4892160

約数和(自身を除く): 2171775

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 2239, 6717, 11195, 20151, 33585, 60453, 100755, 181359, 302265, 544077, 906795, 2720385]

約数ペア:

[(1, 2720385), (3, 906795), (5, 544077), (9, 302265), (15, 181359), (27, 100755), (45, 60453), (81, 33585), (135, 20151), (243, 11195), (405, 6717), (1215, 2239)]