187913710

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{1061}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 344088000

約数和(自身を除く): 156174290

約数列:

[1, 2, 5, 10, 89, 178, 199, 398, 445, 890, 995, 1061, 1990, 2122, 5305, 10610, 17711, 35422, 88555, 94429, 177110, 188858, 211139, 422278, 472145, 944290, 1055695, 2111390, 18791371, 37582742, 93956855, 187913710]

約数ペア:

[(1, 187913710), (2, 93956855), (5, 37582742), (10, 18791371), (89, 2111390), (178, 1055695), (199, 944290), (398, 472145), (445, 422278), (890, 211139), (995, 188858), (1061, 177110), (1990, 94429), (2122, 88555), (5305, 35422), (10610, 17711)]