19681010

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14159}}^1$

素因数の和:14305

約数の個数: 16

約数和(自身を含む): 35683200

約数和(自身を除く): 16002190

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 14159, 28318, 70795, 141590, 1968101, 3936202, 9840505, 19681010]

約数ペア:

[(1, 19681010), (2, 9840505), (5, 3936202), (10, 1968101), (139, 141590), (278, 70795), (695, 28318), (1390, 14159)]