20075385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{421}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 37311552

約数和(自身を除く): 17236167

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 289, 421, 561, 867, 935, 1263, 1445, 2105, 2805, 3179, 4335, 4631, 6315, 7157, 9537, 13893, 15895, 21471, 23155, 35785, 47685, 69465, 78727, 107355, 121669, 236181, 365007, 393635, 608345, 1180905, 1338359, 1825035, 4015077, 6691795, 20075385]

約数ペア:

[(1, 20075385), (3, 6691795), (5, 4015077), (11, 1825035), (15, 1338359), (17, 1180905), (33, 608345), (51, 393635), (55, 365007), (85, 236181), (165, 121669), (187, 107355), (255, 78727), (289, 69465), (421, 47685), (561, 35785), (867, 23155), (935, 21471), (1263, 15895), (1445, 13893), (2105, 9537), (2805, 7157), (3179, 6315), (4335, 4631)]