12812305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 18102528

約数和(自身を除く): 5290223

約数列:

[1, 5, 11, 17, 55, 71, 85, 187, 193, 355, 781, 935, 965, 1207, 2123, 3281, 3905, 6035, 10615, 13277, 13703, 16405, 36091, 66385, 68515, 150733, 180455, 232951, 753665, 1164755, 2562461, 12812305]

約数ペア:

[(1, 12812305), (5, 2562461), (11, 1164755), (17, 753665), (55, 232951), (71, 180455), (85, 150733), (187, 68515), (193, 66385), (355, 36091), (781, 16405), (935, 13703), (965, 13277), (1207, 10615), (2123, 6035), (3281, 3905)]