19873910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40559}}^1$

素因数の和:40580

約数の個数: 24

約数和(自身を含む): 41614560

約数和(自身を除く): 21740650

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40559, 81118, 202795, 283913, 405590, 567826, 1419565, 1987391, 2839130, 3974782, 9936955, 19873910]

約数ペア:

[(1, 19873910), (2, 9936955), (5, 3974782), (7, 2839130), (10, 1987391), (14, 1419565), (35, 567826), (49, 405590), (70, 283913), (98, 202795), (245, 81118), (490, 40559)]