20480228

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 36590400

約数和(自身を除く): 16110172

約数列:

[1, 2, 4, 107, 109, 214, 218, 428, 436, 439, 878, 1756, 11663, 23326, 46652, 46973, 47851, 93946, 95702, 187892, 191404, 5120057, 10240114, 20480228]

約数ペア:

[(1, 20480228), (2, 10240114), (4, 5120057), (107, 191404), (109, 187892), (214, 95702), (218, 93946), (428, 47851), (436, 46973), (439, 46652), (878, 23326), (1756, 11663)]