20573500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1789}}^1$

素因数の和:1831

約数の個数: 48

約数和(自身を含む): 46912320

約数和(自身を除く): 26338820

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 1150, 1789, 2300, 2875, 3578, 5750, 7156, 8945, 11500, 17890, 35780, 41147, 44725, 82294, 89450, 164588, 178900, 205735, 223625, 411470, 447250, 822940, 894500, 1028675, 2057350, 4114700, 5143375, 10286750, 20573500]

約数ペア:

[(1, 20573500), (2, 10286750), (4, 5143375), (5, 4114700), (10, 2057350), (20, 1028675), (23, 894500), (25, 822940), (46, 447250), (50, 411470), (92, 223625), (100, 205735), (115, 178900), (125, 164588), (230, 89450), (250, 82294), (460, 44725), (500, 41147), (575, 35780), (1150, 17890), (1789, 11500), (2300, 8945), (2875, 7156), (3578, 5750)]