31320040

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{4057}}^1$

素因数の和:4261

約数の個数: 32

約数和(自身を含む): 70852680

約数和(自身を除く): 39532640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 4057, 7720, 8114, 16228, 20285, 32456, 40570, 81140, 162280, 783001, 1566002, 3132004, 3915005, 6264008, 7830010, 15660020, 31320040]

約数ペア:

[(1, 31320040), (2, 15660020), (4, 7830010), (5, 6264008), (8, 3915005), (10, 3132004), (20, 1566002), (40, 783001), (193, 162280), (386, 81140), (772, 40570), (965, 32456), (1544, 20285), (1930, 16228), (3860, 8114), (4057, 7720)]