2009405140

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{47147}}^1$

素因数の和:49287

約数の個数: 24

約数和(自身を含む): 4221820512

約数和(自身を除く): 2212415372

約数列:

[1, 2, 4, 5, 10, 20, 2131, 4262, 8524, 10655, 21310, 42620, 47147, 94294, 188588, 235735, 471470, 942940, 100470257, 200940514, 401881028, 502351285, 1004702570, 2009405140]

約数ペア:

[(1, 2009405140), (2, 1004702570), (4, 502351285), (5, 401881028), (10, 200940514), (20, 100470257), (2131, 942940), (4262, 471470), (8524, 235735), (10655, 188588), (21310, 94294), (42620, 47147)]