19387810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 37784880

約数和(自身を除く): 18397070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 293, 509, 586, 1018, 1465, 2545, 2930, 3809, 5090, 6617, 7618, 13234, 19045, 33085, 38090, 66170, 149137, 298274, 745685, 1491370, 1938781, 3877562, 9693905, 19387810]

約数ペア:

[(1, 19387810), (2, 9693905), (5, 3877562), (10, 1938781), (13, 1491370), (26, 745685), (65, 298274), (130, 149137), (293, 66170), (509, 38090), (586, 33085), (1018, 19045), (1465, 13234), (2545, 7618), (2930, 6617), (3809, 5090)]