1721560

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 3911040

約数和(自身を除く): 2189480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 223, 386, 446, 772, 892, 965, 1115, 1544, 1784, 1930, 2230, 3860, 4460, 7720, 8920, 43039, 86078, 172156, 215195, 344312, 430390, 860780, 1721560]

約数ペア:

[(1, 1721560), (2, 860780), (4, 430390), (5, 344312), (8, 215195), (10, 172156), (20, 86078), (40, 43039), (193, 8920), (223, 7720), (386, 4460), (446, 3860), (772, 2230), (892, 1930), (965, 1784), (1115, 1544)]