161783985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 301895424

約数和(自身を除く): 140111439

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 137, 165, 187, 255, 411, 421, 561, 685, 935, 1263, 1507, 2055, 2105, 2329, 2805, 4521, 4631, 6315, 6987, 7157, 7535, 11645, 13893, 21471, 22605, 23155, 25619, 34935, 35785, 57677, 69465, 76857, 78727, 107355, 128095, 173031, 236181, 288385, 384285, 393635, 634447, 865155, 980509, 1180905, 1903341, 2941527, 3172235, 4902545, 9516705, 10785599, 14707635, 32356797, 53927995, 161783985]

約数ペア:

[(1, 161783985), (3, 53927995), (5, 32356797), (11, 14707635), (15, 10785599), (17, 9516705), (33, 4902545), (51, 3172235), (55, 2941527), (85, 1903341), (137, 1180905), (165, 980509), (187, 865155), (255, 634447), (411, 393635), (421, 384285), (561, 288385), (685, 236181), (935, 173031), (1263, 128095), (1507, 107355), (2055, 78727), (2105, 76857), (2329, 69465), (2805, 57677), (4521, 35785), (4631, 34935), (6315, 25619), (6987, 23155), (7157, 22605), (7535, 21471), (11645, 13893)]