388206740

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{23993}}^1$

素因数の和:24811

約数の個数: 24

約数和(自身を含む): 816275880

約数和(自身を除く): 428069140

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 16180, 23993, 47986, 95972, 119965, 239930, 479860, 19410337, 38820674, 77641348, 97051685, 194103370, 388206740]

約数ペア:

[(1, 388206740), (2, 194103370), (4, 97051685), (5, 77641348), (10, 38820674), (20, 19410337), (809, 479860), (1618, 239930), (3236, 119965), (4045, 95972), (8090, 47986), (16180, 23993)]