26780185

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 35012736

約数和(自身を除く): 8232551

約数列:

[1, 5, 17, 43, 85, 215, 289, 431, 731, 1445, 2155, 3655, 7327, 12427, 18533, 36635, 62135, 92665, 124559, 315061, 622795, 1575305, 5356037, 26780185]

約数ペア:

[(1, 26780185), (5, 5356037), (17, 1575305), (43, 622795), (85, 315061), (215, 124559), (289, 92665), (431, 62135), (731, 36635), (1445, 18533), (2155, 12427), (3655, 7327)]