20164091905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{967}}^1\times {\mathrm{1103}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 25648128000

約数和(自身を除く): 5484036095

約数列:

[1, 5, 19, 95, 199, 967, 995, 1103, 3781, 4835, 5515, 18373, 18905, 20957, 91865, 104785, 192433, 219497, 962165, 1066601, 1097485, 3656227, 4170443, 5333005, 18281135, 20265419, 20852215, 101327095, 212253599, 1061267995, 4032818381, 20164091905]

約数ペア:

[(1, 20164091905), (5, 4032818381), (19, 1061267995), (95, 212253599), (199, 101327095), (967, 20852215), (995, 20265419), (1103, 18281135), (3781, 5333005), (4835, 4170443), (5515, 3656227), (18373, 1097485), (18905, 1066601), (20957, 962165), (91865, 219497), (104785, 192433)]