142208860

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{3557}}^1$

素因数の和:5565

約数の個数: 24

約数和(自身を含む): 298872000

約数和(自身を除く): 156663140

約数列:

[1, 2, 4, 5, 10, 20, 1999, 3557, 3998, 7114, 7996, 9995, 14228, 17785, 19990, 35570, 39980, 71140, 7110443, 14220886, 28441772, 35552215, 71104430, 142208860]

約数ペア:

[(1, 142208860), (2, 71104430), (4, 35552215), (5, 28441772), (10, 14220886), (20, 7110443), (1999, 71140), (3557, 39980), (3998, 35570), (7114, 19990), (7996, 17785), (9995, 14228)]