20382335

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 24973920

約数和(自身を除く): 4591585

約数列:

[1, 5, 89, 163, 281, 445, 815, 1405, 14507, 25009, 45803, 72535, 125045, 229015, 4076467, 20382335]

約数ペア:

[(1, 20382335), (5, 4076467), (89, 229015), (163, 125045), (281, 72535), (445, 45803), (815, 25009), (1405, 14507)]