20001310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40819}}^1$

素因数の和:40840

約数の個数: 24

約数和(自身を含む): 41881320

約数和(自身を除く): 21880010

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40819, 81638, 204095, 285733, 408190, 571466, 1428665, 2000131, 2857330, 4000262, 10000655, 20001310]

約数ペア:

[(1, 20001310), (2, 10000655), (5, 4000262), (7, 2857330), (10, 2000131), (14, 1428665), (35, 571466), (49, 408190), (70, 285733), (98, 204095), (245, 81638), (490, 40819)]