20610140

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5231}}^1$

素因数の和:5437

約数の個数: 24

約数和(自身を含む): 43509312

約数和(自身を除く): 22899172

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5231, 10462, 20924, 26155, 52310, 104620, 1030507, 2061014, 4122028, 5152535, 10305070, 20610140]

約数ペア:

[(1, 20610140), (2, 10305070), (4, 5152535), (5, 4122028), (10, 2061014), (20, 1030507), (197, 104620), (394, 52310), (788, 26155), (985, 20924), (1970, 10462), (3940, 5231)]