18261140

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1447}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 38435712

約数和(自身を除く): 20174572

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1447, 2524, 2894, 3155, 5788, 6310, 7235, 12620, 14470, 28940, 913057, 1826114, 3652228, 4565285, 9130570, 18261140]

約数ペア:

[(1, 18261140), (2, 9130570), (4, 4565285), (5, 3652228), (10, 1826114), (20, 913057), (631, 28940), (1262, 14470), (1447, 12620), (2524, 7235), (2894, 6310), (3155, 5788)]