20189875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{8501}}^1$

素因数の和:8535

約数の個数: 16

約数和(自身を含む): 26526240

約数和(自身を除く): 6336365

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 8501, 42505, 161519, 212525, 807595, 1062625, 4037975, 20189875]

約数ペア:

[(1, 20189875), (5, 4037975), (19, 1062625), (25, 807595), (95, 212525), (125, 161519), (475, 42505), (2375, 8501)]