27689020

素因数分解:

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

素因数の和:3957

約数の個数: 24

約数和(自身を含む): 58312800

約数和(自身を除く): 30623780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3559, 3890, 7118, 7780, 14236, 17795, 35590, 71180, 1384451, 2768902, 5537804, 6922255, 13844510, 27689020]

約数ペア:

[(1, 27689020), (2, 13844510), (4, 6922255), (5, 5537804), (10, 2768902), (20, 1384451), (389, 71180), (778, 35590), (1556, 17795), (1945, 14236), (3559, 7780), (3890, 7118)]