19779620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141283}}^1$

素因数の和:141299

約数の個数: 24

約数和(自身を含む): 47471424

約数和(自身を除く): 27691804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141283, 282566, 565132, 706415, 988981, 1412830, 1977962, 2825660, 3955924, 4944905, 9889810, 19779620]

約数ペア:

[(1, 19779620), (2, 9889810), (4, 4944905), (5, 3955924), (7, 2825660), (10, 1977962), (14, 1412830), (20, 988981), (28, 706415), (35, 565132), (70, 282566), (140, 141283)]