64160920

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8311}}^1$

素因数の和:8515

約数の個数: 32

約数和(自身を含む): 145127520

約数和(自身を除く): 80966600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 8311, 16622, 33244, 41555, 66488, 83110, 166220, 332440, 1604023, 3208046, 6416092, 8020115, 12832184, 16040230, 32080460, 64160920]

約数ペア:

[(1, 64160920), (2, 32080460), (4, 16040230), (5, 12832184), (8, 8020115), (10, 6416092), (20, 3208046), (40, 1604023), (193, 332440), (386, 166220), (772, 83110), (965, 66488), (1544, 41555), (1930, 33244), (3860, 16622), (7720, 8311)]