64994680

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8419}}^1$

素因数の和:8623

約数の個数: 32

約数和(自身を含む): 147013200

約数和(自身を除く): 82018520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 8419, 16838, 33676, 42095, 67352, 84190, 168380, 336760, 1624867, 3249734, 6499468, 8124335, 12998936, 16248670, 32497340, 64994680]

約数ペア:

[(1, 64994680), (2, 32497340), (4, 16248670), (5, 12998936), (8, 8124335), (10, 6499468), (20, 3249734), (40, 1624867), (193, 336760), (386, 168380), (772, 84190), (965, 67352), (1544, 42095), (1930, 33676), (3860, 16838), (7720, 8419)]