68691020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{24709}}^1$

素因数の和:24857

約数の個数: 24

約数和(自身を含む): 145294800

約数和(自身を除く): 76603780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 24709, 49418, 98836, 123545, 247090, 494180, 3434551, 6869102, 13738204, 17172755, 34345510, 68691020]

約数ペア:

[(1, 68691020), (2, 34345510), (4, 17172755), (5, 13738204), (10, 6869102), (20, 3434551), (139, 494180), (278, 247090), (556, 123545), (695, 98836), (1390, 49418), (2780, 24709)]