19817660

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4327}}^1$

素因数の和:4565

約数の個数: 24

約数和(自身を含む): 41808480

約数和(自身を除く): 21990820

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4327, 4580, 8654, 17308, 21635, 43270, 86540, 990883, 1981766, 3963532, 4954415, 9908830, 19817660]

約数ペア:

[(1, 19817660), (2, 9908830), (4, 4954415), (5, 3963532), (10, 1981766), (20, 990883), (229, 86540), (458, 43270), (916, 21635), (1145, 17308), (2290, 8654), (4327, 4580)]