20097940

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5101}}^1$

素因数の和:5307

約数の個数: 24

約数和(自身を含む): 42428232

約数和(自身を除く): 22330292

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5101, 10202, 20404, 25505, 51010, 102020, 1004897, 2009794, 4019588, 5024485, 10048970, 20097940]

約数ペア:

[(1, 20097940), (2, 10048970), (4, 5024485), (5, 4019588), (10, 2009794), (20, 1004897), (197, 102020), (394, 51010), (788, 25505), (985, 20404), (1970, 10202), (3940, 5101)]