13240045

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4157}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 19908504

約数和(自身を除く): 6668459

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 4157, 20785, 29099, 54041, 145495, 203693, 270205, 378287, 1018465, 1891435, 2648009, 13240045]

約数ペア:

[(1, 13240045), (5, 2648009), (7, 1891435), (13, 1018465), (35, 378287), (49, 270205), (65, 203693), (91, 145495), (245, 54041), (455, 29099), (637, 20785), (3185, 4157)]