18261820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6569}}^1$

素因数の和:6717

約数の個数: 24

約数和(自身を含む): 38631600

約数和(自身を除く): 20369780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6569, 13138, 26276, 32845, 65690, 131380, 913091, 1826182, 3652364, 4565455, 9130910, 18261820]

約数ペア:

[(1, 18261820), (2, 9130910), (4, 4565455), (5, 3652364), (10, 1826182), (20, 913091), (139, 131380), (278, 65690), (556, 32845), (695, 26276), (1390, 13138), (2780, 6569)]