20504515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2137}}^1$

素因数の和:2262

約数の個数: 16

約数和(自身を含む): 26169120

約数和(自身を除く): 5664605

約数列:

[1, 5, 19, 95, 101, 505, 1919, 2137, 9595, 10685, 40603, 203015, 215837, 1079185, 4100903, 20504515]

約数ペア:

[(1, 20504515), (5, 4100903), (19, 1079185), (95, 215837), (101, 203015), (505, 40603), (1919, 10685), (2137, 9595)]