80797520

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5233}}^1$

素因数の和:5439

約数の個数: 40

約数和(自身を含む): 188863656

約数和(自身を除く): 108066136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 5233, 7720, 10466, 15440, 20932, 26165, 41864, 52330, 83728, 104660, 209320, 418640, 1009969, 2019938, 4039876, 5049845, 8079752, 10099690, 16159504, 20199380, 40398760, 80797520]

約数ペア:

[(1, 80797520), (2, 40398760), (4, 20199380), (5, 16159504), (8, 10099690), (10, 8079752), (16, 5049845), (20, 4039876), (40, 2019938), (80, 1009969), (193, 418640), (386, 209320), (772, 104660), (965, 83728), (1544, 52330), (1930, 41864), (3088, 26165), (3860, 20932), (5233, 15440), (7720, 10466)]