20529800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4463}}^1$

素因数の和:4502

約数の個数: 48

約数和(自身を含む): 49818240

約数和(自身を除く): 29288440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4463, 4600, 8926, 17852, 22315, 35704, 44630, 89260, 102649, 111575, 178520, 205298, 223150, 410596, 446300, 513245, 821192, 892600, 1026490, 2052980, 2566225, 4105960, 5132450, 10264900, 20529800]

約数ペア:

[(1, 20529800), (2, 10264900), (4, 5132450), (5, 4105960), (8, 2566225), (10, 2052980), (20, 1026490), (23, 892600), (25, 821192), (40, 513245), (46, 446300), (50, 410596), (92, 223150), (100, 205298), (115, 178520), (184, 111575), (200, 102649), (230, 89260), (460, 44630), (575, 35704), (920, 22315), (1150, 17852), (2300, 8926), (4463, 4600)]