20218820995

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1\times {\mathrm{769}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 24742428480

約数和(自身を除く): 4523607485

約数列:

[1, 5, 131, 137, 293, 655, 685, 769, 1465, 3845, 17947, 38383, 40141, 89735, 100739, 105353, 191915, 200705, 225317, 503695, 526765, 1126585, 5258471, 13801243, 26292355, 29516527, 30868429, 69006215, 147582635, 154342145, 4043764199, 20218820995]

約数ペア:

[(1, 20218820995), (5, 4043764199), (131, 154342145), (137, 147582635), (293, 69006215), (655, 30868429), (685, 29516527), (769, 26292355), (1465, 13801243), (3845, 5258471), (17947, 1126585), (38383, 526765), (40141, 503695), (89735, 225317), (100739, 200705), (105353, 191915)]