208756855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{106781}}^1$

素因数の和:106826

約数の個数: 16

約数和(自身を含む): 276778944

約数和(自身を除く): 68022089

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 106781, 533905, 1815277, 2455963, 9076385, 12279815, 41751371, 208756855]

約数ペア:

[(1, 208756855), (5, 41751371), (17, 12279815), (23, 9076385), (85, 2455963), (115, 1815277), (391, 533905), (1955, 106781)]