28231005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 52918272

約数和(自身を除く): 24687267

約数列:

[1, 3, 5, 11, 15, 23, 33, 43, 55, 69, 115, 129, 165, 173, 215, 253, 345, 473, 519, 645, 759, 865, 989, 1265, 1419, 1903, 2365, 2595, 2967, 3795, 3979, 4945, 5709, 7095, 7439, 9515, 10879, 11937, 14835, 19895, 22317, 28545, 32637, 37195, 43769, 54395, 59685, 81829, 111585, 131307, 163185, 171097, 218845, 245487, 409145, 513291, 656535, 855485, 1227435, 1882067, 2566455, 5646201, 9410335, 28231005]

約数ペア:

[(1, 28231005), (3, 9410335), (5, 5646201), (11, 2566455), (15, 1882067), (23, 1227435), (33, 855485), (43, 656535), (55, 513291), (69, 409145), (115, 245487), (129, 218845), (165, 171097), (173, 163185), (215, 131307), (253, 111585), (345, 81829), (473, 59685), (519, 54395), (645, 43769), (759, 37195), (865, 32637), (989, 28545), (1265, 22317), (1419, 19895), (1903, 14835), (2365, 11937), (2595, 10879), (2967, 9515), (3795, 7439), (3979, 7095), (4945, 5709)]