20550500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1787}}^1$

素因数の和:1829

約数の個数: 48

約数和(自身を含む): 46859904

約数和(自身を除く): 26309404

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 1150, 1787, 2300, 2875, 3574, 5750, 7148, 8935, 11500, 17870, 35740, 41101, 44675, 82202, 89350, 164404, 178700, 205505, 223375, 411010, 446750, 822020, 893500, 1027525, 2055050, 4110100, 5137625, 10275250, 20550500]

約数ペア:

[(1, 20550500), (2, 10275250), (4, 5137625), (5, 4110100), (10, 2055050), (20, 1027525), (23, 893500), (25, 822020), (46, 446750), (50, 411010), (92, 223375), (100, 205505), (115, 178700), (125, 164404), (230, 89350), (250, 82202), (460, 44675), (500, 41101), (575, 35740), (1150, 17870), (1787, 11500), (2300, 8935), (2875, 7148), (3574, 5750)]