6720505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 8926848

約数和(自身を除く): 2206343

約数列:

[1, 5, 11, 55, 71, 355, 781, 1721, 3905, 8605, 18931, 94655, 122191, 610955, 1344101, 6720505]

約数ペア:

[(1, 6720505), (5, 1344101), (11, 610955), (55, 122191), (71, 94655), (355, 18931), (781, 8605), (1721, 3905)]