55378040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3559}}^1$

素因数の和:3959

約数の個数: 32

約数和(自身を含む): 124956000

約数和(自身を除く): 69577960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3559, 3890, 7118, 7780, 14236, 15560, 17795, 28472, 35590, 71180, 142360, 1384451, 2768902, 5537804, 6922255, 11075608, 13844510, 27689020, 55378040]

約数ペア:

[(1, 55378040), (2, 27689020), (4, 13844510), (5, 11075608), (8, 6922255), (10, 5537804), (20, 2768902), (40, 1384451), (389, 142360), (778, 71180), (1556, 35590), (1945, 28472), (3112, 17795), (3559, 15560), (3890, 14236), (7118, 7780)]