20890375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15193}}^1$

素因数の和:15219

約数の個数: 16

約数和(自身を含む): 28443168

約数和(自身を除く): 7552793

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15193, 75965, 167123, 379825, 835615, 1899125, 4178075, 20890375]

約数ペア:

[(1, 20890375), (5, 4178075), (11, 1899125), (25, 835615), (55, 379825), (125, 167123), (275, 75965), (1375, 15193)]