80871805

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19417}}^1$

素因数の和:19453

約数の個数: 24

約数和(自身を含む): 119537208

約数和(自身を除く): 38665403

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 19417, 97085, 135919, 330089, 679595, 951433, 1650445, 2310623, 4757165, 11553115, 16174361, 80871805]

約数ペア:

[(1, 80871805), (5, 16174361), (7, 11553115), (17, 4757165), (35, 2310623), (49, 1650445), (85, 951433), (119, 679595), (245, 330089), (595, 135919), (833, 97085), (4165, 19417)]