31100390

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{15787}}^1$

素因数の和:15991

約数の個数: 16

約数和(自身を含む): 56268432

約数和(自身を除く): 25168042

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 15787, 31574, 78935, 157870, 3110039, 6220078, 15550195, 31100390]

約数ペア:

[(1, 31100390), (2, 15550195), (5, 6220078), (10, 3110039), (197, 157870), (394, 78935), (985, 31574), (1970, 15787)]