18900490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1399}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 20209910

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1399, 1930, 2702, 2798, 6755, 6995, 9793, 13510, 13990, 19586, 48965, 97930, 270007, 540014, 1350035, 1890049, 2700070, 3780098, 9450245, 18900490]

約数ペア:

[(1, 18900490), (2, 9450245), (5, 3780098), (7, 2700070), (10, 1890049), (14, 1350035), (35, 540014), (70, 270007), (193, 97930), (386, 48965), (965, 19586), (1351, 13990), (1399, 13510), (1930, 9793), (2702, 6995), (2798, 6755)]