19765985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12239}}^1$

素因数の和:12280

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 6672415

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12239, 61195, 208063, 232541, 1040315, 1162705, 3953197, 19765985]

約数ペア:

[(1, 19765985), (5, 3953197), (17, 1162705), (19, 1040315), (85, 232541), (95, 208063), (323, 61195), (1615, 12239)]