81687908

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{2503}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 147235200

約数和(自身を除く): 65547292

約数列:

[1, 2, 4, 41, 82, 164, 199, 398, 796, 2503, 5006, 8159, 10012, 16318, 32636, 102623, 205246, 410492, 498097, 996194, 1992388, 20421977, 40843954, 81687908]

約数ペア:

[(1, 81687908), (2, 40843954), (4, 20421977), (41, 1992388), (82, 996194), (164, 498097), (199, 410492), (398, 205246), (796, 102623), (2503, 32636), (5006, 16318), (8159, 10012)]