20578755

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80701}}^1$

素因数の和:80726

約数の個数: 16

約数和(自身を含む): 34863264

約数和(自身を除く): 14284509

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80701, 242103, 403505, 1210515, 1371917, 4115751, 6859585, 20578755]

約数ペア:

[(1, 20578755), (3, 6859585), (5, 4115751), (15, 1371917), (17, 1210515), (51, 403505), (85, 242103), (255, 80701)]