12719890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9151}}^1$

素因数の和:9297

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 10343150

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 9151, 18302, 45755, 91510, 1271989, 2543978, 6359945, 12719890]

約数ペア:

[(1, 12719890), (2, 6359945), (5, 2543978), (10, 1271989), (139, 91510), (278, 45755), (695, 18302), (1390, 9151)]