258789392

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{19993}}^1$

素因数の和:20810

約数の個数: 20

約数和(自身を含む): 502049340

約数和(自身を除く): 243259948

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 12944, 19993, 39986, 79972, 159944, 319888, 16174337, 32348674, 64697348, 129394696, 258789392]

約数ペア:

[(1, 258789392), (2, 129394696), (4, 64697348), (8, 32348674), (16, 16174337), (809, 319888), (1618, 159944), (3236, 79972), (6472, 39986), (12944, 19993)]