20802018545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54031217}}^1$

素因数の和:54031240

約数の個数: 16

約数和(自身を含む): 31121981568

約数和(自身を除く): 10319963023

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54031217, 270156085, 378218519, 594343387, 1891092595, 2971716935, 4160403709, 20802018545]

約数ペア:

[(1, 20802018545), (5, 4160403709), (7, 2971716935), (11, 1891092595), (35, 594343387), (55, 378218519), (77, 270156085), (385, 54031217)]