138523780

素因数分解:

$2^2\times 5^1\times {\mathrm{1597}}^1\times {\mathrm{4337}}^1$

素因数の和:5943

約数の個数: 24

約数和(自身を含む): 291149208

約数和(自身を除く): 152625428

約数列:

[1, 2, 4, 5, 10, 20, 1597, 3194, 4337, 6388, 7985, 8674, 15970, 17348, 21685, 31940, 43370, 86740, 6926189, 13852378, 27704756, 34630945, 69261890, 138523780]

約数ペア:

[(1, 138523780), (2, 69261890), (4, 34630945), (5, 27704756), (10, 13852378), (20, 6926189), (1597, 86740), (3194, 43370), (4337, 31940), (6388, 21685), (7985, 17348), (8674, 15970)]