314420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 672000

約数和(自身を除く): 357580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 199, 316, 395, 398, 790, 796, 995, 1580, 1990, 3980, 15721, 31442, 62884, 78605, 157210, 314420]

約数ペア:

[(1, 314420), (2, 157210), (4, 78605), (5, 62884), (10, 31442), (20, 15721), (79, 3980), (158, 1990), (199, 1580), (316, 995), (395, 796), (398, 790)]