2688328040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{616589}}^1$

素因数の和:616709

約数の個数: 32

約数和(自身を含む): 6104241000

約数和(自身を除く): 3415912960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 616589, 1233178, 2466356, 3082945, 4932712, 6165890, 12331780, 24663560, 67208201, 134416402, 268832804, 336041005, 537665608, 672082010, 1344164020, 2688328040]

約数ペア:

[(1, 2688328040), (2, 1344164020), (4, 672082010), (5, 537665608), (8, 336041005), (10, 268832804), (20, 134416402), (40, 67208201), (109, 24663560), (218, 12331780), (436, 6165890), (545, 4932712), (872, 3082945), (1090, 2466356), (2180, 1233178), (4360, 616589)]