26991325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 36325800

約数和(自身を除く): 9334475

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 1549, 3485, 7745, 17425, 26333, 38725, 63509, 131665, 317545, 658325, 1079653, 1587725, 5398265, 26991325]

約数ペア:

[(1, 26991325), (5, 5398265), (17, 1587725), (25, 1079653), (41, 658325), (85, 317545), (205, 131665), (425, 63509), (697, 38725), (1025, 26333), (1549, 17425), (3485, 7745)]