20385145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1319}}^1$

素因数の和:1616

約数の個数: 16

約数和(自身を含む): 26801280

約数和(自身を除く): 6416135

約数列:

[1, 5, 11, 55, 281, 1319, 1405, 3091, 6595, 14509, 15455, 72545, 370639, 1853195, 4077029, 20385145]

約数ペア:

[(1, 20385145), (5, 4077029), (11, 1853195), (55, 370639), (281, 72545), (1319, 15455), (1405, 14509), (3091, 6595)]