205870520

素因数分解:

$2^3\times 5^1\times {\mathrm{5146763}}^1$

素因数の和:5146774

約数の個数: 16

約数和(自身を含む): 463208760

約数和(自身を除く): 257338240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5146763, 10293526, 20587052, 25733815, 41174104, 51467630, 102935260, 205870520]

約数ペア:

[(1, 205870520), (2, 102935260), (4, 51467630), (5, 41174104), (8, 25733815), (10, 20587052), (20, 10293526), (40, 5146763)]