28865556

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 77357280

約数和(自身を除く): 48491724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 43, 58, 86, 87, 116, 129, 172, 174, 258, 261, 348, 387, 516, 522, 643, 774, 1044, 1247, 1286, 1548, 1929, 2494, 2572, 3741, 3858, 4988, 5787, 7482, 7716, 11223, 11574, 14964, 18647, 22446, 23148, 27649, 37294, 44892, 55298, 55941, 74588, 82947, 110596, 111882, 165894, 167823, 223764, 248841, 331788, 335646, 497682, 671292, 801821, 995364, 1603642, 2405463, 3207284, 4810926, 7216389, 9621852, 14432778, 28865556]

約数ペア:

[(1, 28865556), (2, 14432778), (3, 9621852), (4, 7216389), (6, 4810926), (9, 3207284), (12, 2405463), (18, 1603642), (29, 995364), (36, 801821), (43, 671292), (58, 497682), (86, 335646), (87, 331788), (116, 248841), (129, 223764), (172, 167823), (174, 165894), (258, 111882), (261, 110596), (348, 82947), (387, 74588), (516, 55941), (522, 55298), (643, 44892), (774, 37294), (1044, 27649), (1247, 23148), (1286, 22446), (1548, 18647), (1929, 14964), (2494, 11574), (2572, 11223), (3741, 7716), (3858, 7482), (4988, 5787)]