9991055

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 12700800

約数和(自身を除く): 2709745

約数列:

[1, 5, 19, 95, 251, 419, 1255, 2095, 4769, 7961, 23845, 39805, 105169, 525845, 1998211, 9991055]

約数ペア:

[(1, 9991055), (5, 1998211), (19, 525845), (95, 105169), (251, 39805), (419, 23845), (1255, 7961), (2095, 4769)]