19995125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{8419}}^1$

素因数の和:8453

約数の個数: 16

約数和(自身を含む): 26270400

約数和(自身を除く): 6275275

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 8419, 42095, 159961, 210475, 799805, 1052375, 3999025, 19995125]

約数ペア:

[(1, 19995125), (5, 3999025), (19, 1052375), (25, 799805), (95, 210475), (125, 159961), (475, 42095), (2375, 8419)]