80405950

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{8081}}^1$

素因数の和:8292

約数の個数: 24

約数和(自身を含む): 150325200

約数和(自身を除く): 69919250

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 4975, 8081, 9950, 16162, 40405, 80810, 202025, 404050, 1608119, 3216238, 8040595, 16081190, 40202975, 80405950]

約数ペア:

[(1, 80405950), (2, 40202975), (5, 16081190), (10, 8040595), (25, 3216238), (50, 1608119), (199, 404050), (398, 202025), (995, 80810), (1990, 40405), (4975, 16162), (8081, 9950)]