208142780

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{53923}}^1$

素因数の和:54125

約数の個数: 24

約数和(自身を含む): 439372752

約数和(自身を除く): 231229972

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 53923, 107846, 215692, 269615, 539230, 1078460, 10407139, 20814278, 41628556, 52035695, 104071390, 208142780]

約数ペア:

[(1, 208142780), (2, 104071390), (4, 52035695), (5, 41628556), (10, 20814278), (20, 10407139), (193, 1078460), (386, 539230), (772, 269615), (965, 215692), (1930, 107846), (3860, 53923)]