18131720

素因数分解:

$2^3\times 5^1\times {\mathrm{453293}}^1$

素因数の和:453304

約数の個数: 16

約数和(自身を含む): 40796460

約数和(自身を除く): 22664740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 453293, 906586, 1813172, 2266465, 3626344, 4532930, 9065860, 18131720]

約数ペア:

[(1, 18131720), (2, 9065860), (4, 4532930), (5, 3626344), (8, 2266465), (10, 1813172), (20, 906586), (40, 453293)]