13778245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 19420128

約数和(自身を除く): 5641883

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 337, 481, 629, 1105, 1685, 2405, 3145, 4381, 5729, 8177, 12469, 21905, 28645, 40885, 62345, 74477, 162097, 211973, 372385, 810485, 1059865, 2755649, 13778245]

約数ペア:

[(1, 13778245), (5, 2755649), (13, 1059865), (17, 810485), (37, 372385), (65, 211973), (85, 162097), (185, 74477), (221, 62345), (337, 40885), (481, 28645), (629, 21905), (1105, 12469), (1685, 8177), (2405, 5729), (3145, 4381)]