18107860

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1277}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 38109960

約数和(自身を除く): 20002100

約数列:

[1, 2, 4, 5, 10, 20, 709, 1277, 1418, 2554, 2836, 3545, 5108, 6385, 7090, 12770, 14180, 25540, 905393, 1810786, 3621572, 4526965, 9053930, 18107860]

約数ペア:

[(1, 18107860), (2, 9053930), (4, 4526965), (5, 3621572), (10, 1810786), (20, 905393), (709, 25540), (1277, 14180), (1418, 12770), (2554, 7090), (2836, 6385), (3545, 5108)]