18525880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2351}}^1$

素因数の和:2559

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 23386760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2351, 3940, 4702, 7880, 9404, 11755, 18808, 23510, 47020, 94040, 463147, 926294, 1852588, 2315735, 3705176, 4631470, 9262940, 18525880]

約数ペア:

[(1, 18525880), (2, 9262940), (4, 4631470), (5, 3705176), (8, 2315735), (10, 1852588), (20, 926294), (40, 463147), (197, 94040), (394, 47020), (788, 23510), (985, 18808), (1576, 11755), (1970, 9404), (2351, 7880), (3940, 4702)]