12740565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2939}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 21661920

約数和(自身を除く): 8921355

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 2939, 4335, 8817, 14695, 44085, 49963, 149889, 249815, 749445, 849371, 2548113, 4246855, 12740565]

約数ペア:

[(1, 12740565), (3, 4246855), (5, 2548113), (15, 849371), (17, 749445), (51, 249815), (85, 149889), (255, 49963), (289, 44085), (867, 14695), (1445, 8817), (2939, 4335)]