181321780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{124193}}^1$

素因数の和:124275

約数の個数: 24

約数和(自身を含む): 385994952

約数和(自身を除く): 204673172

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 124193, 248386, 496772, 620965, 1241930, 2483860, 9066089, 18132178, 36264356, 45330445, 90660890, 181321780]

約数ペア:

[(1, 181321780), (2, 90660890), (4, 45330445), (5, 36264356), (10, 18132178), (20, 9066089), (73, 2483860), (146, 1241930), (292, 620965), (365, 496772), (730, 248386), (1460, 124193)]