39642790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1811}}^1$

素因数の和:2028

約数の個数: 32

約数和(自身を含む): 78278400

約数和(自身を除く): 38635610

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1811, 1990, 2189, 3622, 4378, 9055, 10945, 18110, 19921, 21890, 39842, 99605, 199210, 360389, 720778, 1801945, 3603890, 3964279, 7928558, 19821395, 39642790]

約数ペア:

[(1, 39642790), (2, 19821395), (5, 7928558), (10, 3964279), (11, 3603890), (22, 1801945), (55, 720778), (110, 360389), (199, 199210), (398, 99605), (995, 39842), (1811, 21890), (1990, 19921), (2189, 18110), (3622, 10945), (4378, 9055)]