20512114870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157785499}}^1$

素因数の和:157785519

約数の個数: 16

約数和(自身を含む): 39761946000

約数和(自身を除く): 19249831130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157785499, 315570998, 788927495, 1577854990, 2051211487, 4102422974, 10256057435, 20512114870]

約数ペア:

[(1, 20512114870), (2, 10256057435), (5, 4102422974), (10, 2051211487), (13, 1577854990), (26, 788927495), (65, 315570998), (130, 157785499)]