211399690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{2591}}^1$

素因数の和:2838

約数の個数: 32

約数和(自身を含む): 391910400

約数和(自身を除く): 180510710

約数列:

[1, 2, 5, 10, 41, 82, 199, 205, 398, 410, 995, 1990, 2591, 5182, 8159, 12955, 16318, 25910, 40795, 81590, 106231, 212462, 515609, 531155, 1031218, 1062310, 2578045, 5156090, 21139969, 42279938, 105699845, 211399690]

約数ペア:

[(1, 211399690), (2, 105699845), (5, 42279938), (10, 21139969), (41, 5156090), (82, 2578045), (199, 1062310), (205, 1031218), (398, 531155), (410, 515609), (995, 212462), (1990, 106231), (2591, 81590), (5182, 40795), (8159, 25910), (12955, 16318)]