81287842

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{3989}}^1$

素因数の和:4457

約数の個数: 16

約数和(自身を含む): 127552320

約数和(自身を除く): 46264478

約数列:

[1, 2, 23, 46, 443, 886, 3989, 7978, 10189, 20378, 91747, 183494, 1767127, 3534254, 40643921, 81287842]

約数ペア:

[(1, 81287842), (2, 40643921), (23, 3534254), (46, 1767127), (443, 183494), (886, 91747), (3989, 20378), (7978, 10189)]