1628920

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 3701520

約数和(自身を除く): 2072600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 211, 386, 422, 772, 844, 965, 1055, 1544, 1688, 1930, 2110, 3860, 4220, 7720, 8440, 40723, 81446, 162892, 203615, 325784, 407230, 814460, 1628920]

約数ペア:

[(1, 1628920), (2, 814460), (4, 407230), (5, 325784), (8, 203615), (10, 162892), (20, 81446), (40, 40723), (193, 8440), (211, 7720), (386, 4220), (422, 3860), (772, 2110), (844, 1930), (965, 1688), (1055, 1544)]