81485950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17909}}^1$

素因数の和:17941

約数の個数: 48

約数和(自身を含む): 186550560

約数和(自身を除く): 105064610

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 17909, 35818, 89545, 125363, 179090, 232817, 250726, 447725, 465634, 626815, 895450, 1164085, 1253630, 1629719, 2328170, 3134075, 3259438, 5820425, 6268150, 8148595, 11640850, 16297190, 40742975, 81485950]

約数ペア:

[(1, 81485950), (2, 40742975), (5, 16297190), (7, 11640850), (10, 8148595), (13, 6268150), (14, 5820425), (25, 3259438), (26, 3134075), (35, 2328170), (50, 1629719), (65, 1253630), (70, 1164085), (91, 895450), (130, 626815), (175, 465634), (182, 447725), (325, 250726), (350, 232817), (455, 179090), (650, 125363), (910, 89545), (2275, 35818), (4550, 17909)]