20460945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80239}}^1$

素因数の和:80264

約数の個数: 16

約数和(自身を含む): 34663680

約数和(自身を除く): 14202735

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80239, 240717, 401195, 1203585, 1364063, 4092189, 6820315, 20460945]

約数ペア:

[(1, 20460945), (3, 6820315), (5, 4092189), (15, 1364063), (17, 1203585), (51, 401195), (85, 240717), (255, 80239)]