20339785

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{853}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 25824960

約数和(自身を除く): 5485175

約数列:

[1, 5, 19, 95, 251, 853, 1255, 4265, 4769, 16207, 23845, 81035, 214103, 1070515, 4067957, 20339785]

約数ペア:

[(1, 20339785), (5, 4067957), (19, 1070515), (95, 214103), (251, 81035), (853, 23845), (1255, 16207), (4265, 4769)]