20173168528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{136261}}^1$

素因数の和:136775

約数の個数: 40

約数和(自身を含む): 41227430720

約数和(自身を除く): 21054262192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 487, 974, 1948, 3896, 7792, 9253, 18506, 37012, 74024, 136261, 148048, 272522, 545044, 1090088, 2180176, 2588959, 5177918, 10355836, 20711672, 41423344, 66359107, 132718214, 265436428, 530872856, 1061745712, 1260823033, 2521646066, 5043292132, 10086584264, 20173168528]

約数ペア:

[(1, 20173168528), (2, 10086584264), (4, 5043292132), (8, 2521646066), (16, 1260823033), (19, 1061745712), (38, 530872856), (76, 265436428), (152, 132718214), (304, 66359107), (487, 41423344), (974, 20711672), (1948, 10355836), (3896, 5177918), (7792, 2588959), (9253, 2180176), (18506, 1090088), (37012, 545044), (74024, 272522), (136261, 148048)]