28330780

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1597}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 59599008

約数和(自身を除く): 31268228

約数列:

[1, 2, 4, 5, 10, 20, 887, 1597, 1774, 3194, 3548, 4435, 6388, 7985, 8870, 15970, 17740, 31940, 1416539, 2833078, 5666156, 7082695, 14165390, 28330780]

約数ペア:

[(1, 28330780), (2, 14165390), (4, 7082695), (5, 5666156), (10, 2833078), (20, 1416539), (887, 31940), (1597, 17740), (1774, 15970), (3194, 8870), (3548, 7985), (4435, 6388)]