20512172330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157785941}}^1$

素因数の和:157785961

約数の個数: 16

約数和(自身を含む): 39762057384

約数和(自身を除く): 19249885054

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157785941, 315571882, 788929705, 1577859410, 2051217233, 4102434466, 10256086165, 20512172330]

約数ペア:

[(1, 20512172330), (2, 10256086165), (5, 4102434466), (10, 2051217233), (13, 1577859410), (26, 788929705), (65, 315571882), (130, 157785941)]