68653960

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8893}}^1$

素因数の和:9097

約数の個数: 32

約数和(自身を含む): 155289240

約数和(自身を除く): 86635280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 8893, 17786, 35572, 44465, 71144, 88930, 177860, 355720, 1716349, 3432698, 6865396, 8581745, 13730792, 17163490, 34326980, 68653960]

約数ペア:

[(1, 68653960), (2, 34326980), (4, 17163490), (5, 13730792), (8, 8581745), (10, 6865396), (20, 3432698), (40, 1716349), (193, 355720), (386, 177860), (772, 88930), (965, 71144), (1544, 44465), (1930, 35572), (3860, 17786), (7720, 8893)]