19436020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4933}}^1$

素因数の和:5139

約数の個数: 24

約数和(自身を含む): 41031144

約数和(自身を除く): 21595124

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4933, 9866, 19732, 24665, 49330, 98660, 971801, 1943602, 3887204, 4859005, 9718010, 19436020]

約数ペア:

[(1, 19436020), (2, 9718010), (4, 4859005), (5, 3887204), (10, 1943602), (20, 971801), (197, 98660), (394, 49330), (788, 24665), (985, 19732), (1970, 9866), (3940, 4933)]