1989395

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 2576640

約数和(自身を除く): 587245

約数列:

[1, 5, 19, 43, 95, 215, 487, 817, 2435, 4085, 9253, 20941, 46265, 104705, 397879, 1989395]

約数ペア:

[(1, 1989395), (5, 397879), (19, 104705), (43, 46265), (95, 20941), (215, 9253), (487, 4085), (817, 2435)]