78991040

素因数分解:

$2^6\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1279}}^1$

素因数の和:1489

約数の個数: 56

約数和(自身を含む): 189219840

約数和(自身を除く): 110228800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 193, 320, 386, 772, 965, 1279, 1544, 1930, 2558, 3088, 3860, 5116, 6176, 6395, 7720, 10232, 12352, 12790, 15440, 20464, 25580, 30880, 40928, 51160, 61760, 81856, 102320, 204640, 246847, 409280, 493694, 987388, 1234235, 1974776, 2468470, 3949552, 4936940, 7899104, 9873880, 15798208, 19747760, 39495520, 78991040]

約数ペア:

[(1, 78991040), (2, 39495520), (4, 19747760), (5, 15798208), (8, 9873880), (10, 7899104), (16, 4936940), (20, 3949552), (32, 2468470), (40, 1974776), (64, 1234235), (80, 987388), (160, 493694), (193, 409280), (320, 246847), (386, 204640), (772, 102320), (965, 81856), (1279, 61760), (1544, 51160), (1930, 40928), (2558, 30880), (3088, 25580), (3860, 20464), (5116, 15440), (6176, 12790), (6395, 12352), (7720, 10232)]