313990420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{79693}}^1$

素因数の和:79899

約数の個数: 24

約数和(自身を含む): 662735304

約数和(自身を除く): 348744884

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 79693, 159386, 318772, 398465, 796930, 1593860, 15699521, 31399042, 62798084, 78497605, 156995210, 313990420]

約数ペア:

[(1, 313990420), (2, 156995210), (4, 78497605), (5, 62798084), (10, 31399042), (20, 15699521), (197, 1593860), (394, 796930), (788, 398465), (985, 318772), (1970, 159386), (3940, 79693)]