20161843371920

素因数分解:

$2^4\times 5^1\times {\mathrm{170551}}^1\times {\mathrm{1477699}}^1$

素因数の和:1648263

約数の個数: 40

約数和(自身を含む): 46876592414400

約数和(自身を除く): 26714749042480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 170551, 341102, 682204, 852755, 1364408, 1477699, 1705510, 2728816, 2955398, 3411020, 5910796, 6822040, 7388495, 11821592, 13644080, 14776990, 23643184, 29553980, 59107960, 118215920, 252023042149, 504046084298, 1008092168596, 1260115210745, 2016184337192, 2520230421490, 4032368674384, 5040460842980, 10080921685960, 20161843371920]

約数ペア:

[(1, 20161843371920), (2, 10080921685960), (4, 5040460842980), (5, 4032368674384), (8, 2520230421490), (10, 2016184337192), (16, 1260115210745), (20, 1008092168596), (40, 504046084298), (80, 252023042149), (170551, 118215920), (341102, 59107960), (682204, 29553980), (852755, 23643184), (1364408, 14776990), (1477699, 13644080), (1705510, 11821592), (2728816, 7388495), (2955398, 6822040), (3411020, 5910796)]