18411080

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1039}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 41558400

約数和(自身を除く): 23147320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1039, 1772, 2078, 2215, 3544, 4156, 4430, 5195, 8312, 8860, 10390, 17720, 20780, 41560, 460277, 920554, 1841108, 2301385, 3682216, 4602770, 9205540, 18411080]

約数ペア:

[(1, 18411080), (2, 9205540), (4, 4602770), (5, 3682216), (8, 2301385), (10, 1841108), (20, 920554), (40, 460277), (443, 41560), (886, 20780), (1039, 17720), (1772, 10390), (2078, 8860), (2215, 8312), (3544, 5195), (4156, 4430)]