19289780

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3559}}^1$

素因数の和:3839

約数の個数: 24

約数和(自身を含む): 40669440

約数和(自身を除く): 21379660

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3559, 5420, 7118, 14236, 17795, 35590, 71180, 964489, 1928978, 3857956, 4822445, 9644890, 19289780]

約数ペア:

[(1, 19289780), (2, 9644890), (4, 4822445), (5, 3857956), (10, 1928978), (20, 964489), (271, 71180), (542, 35590), (1084, 17795), (1355, 14236), (2710, 7118), (3559, 5420)]