208939865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{30977}}^1$

素因数の和:31072

約数の個数: 16

約数和(自身を含む): 267649920

約数和(自身を除く): 58710055

約数列:

[1, 5, 19, 71, 95, 355, 1349, 6745, 30977, 154885, 588563, 2199367, 2942815, 10996835, 41787973, 208939865]

約数ペア:

[(1, 208939865), (5, 41787973), (19, 10996835), (71, 2942815), (95, 2199367), (355, 588563), (1349, 154885), (6745, 30977)]