20157484795

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18578327}}^1$

素因数の和:18578370

約数の個数: 16

約数和(自身を含む): 28536311808

約数和(自身を除く): 8378827013

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18578327, 92891635, 130048289, 575928137, 650241445, 2879640685, 4031496959, 20157484795]

約数ペア:

[(1, 20157484795), (5, 4031496959), (7, 2879640685), (31, 650241445), (35, 575928137), (155, 130048289), (217, 92891635), (1085, 18578327)]