3991580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1831}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 8463840

約数和(自身を除く): 4472260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1831, 2180, 3662, 7324, 9155, 18310, 36620, 199579, 399158, 798316, 997895, 1995790, 3991580]

約数ペア:

[(1, 3991580), (2, 1995790), (4, 997895), (5, 798316), (10, 399158), (20, 199579), (109, 36620), (218, 18310), (436, 9155), (545, 7324), (1090, 3662), (1831, 2180)]