20512095370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157785349}}^1$

素因数の和:157785369

約数の個数: 16

約数和(自身を含む): 39761908200

約数和(自身を除く): 19249812830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157785349, 315570698, 788926745, 1577853490, 2051209537, 4102419074, 10256047685, 20512095370]

約数ペア:

[(1, 20512095370), (2, 10256047685), (5, 4102419074), (10, 2051209537), (13, 1577853490), (26, 788926745), (65, 315570698), (130, 157785349)]