19879270

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10091}}^1$

素因数の和:10295

約数の個数: 16

約数和(自身を含む): 35967888

約数和(自身を除く): 16088618

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10091, 20182, 50455, 100910, 1987927, 3975854, 9939635, 19879270]

約数ペア:

[(1, 19879270), (2, 9939635), (5, 3975854), (10, 1987927), (197, 100910), (394, 50455), (985, 20182), (1970, 10091)]