21447500

素因数分解:

$2^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:420

約数の個数: 60

約数和(自身を含む): 49071792

約数和(自身を除く): 27624292

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 373, 460, 500, 575, 625, 746, 1150, 1250, 1492, 1865, 2300, 2500, 2875, 3730, 5750, 7460, 8579, 9325, 11500, 14375, 17158, 18650, 28750, 34316, 37300, 42895, 46625, 57500, 85790, 93250, 171580, 186500, 214475, 233125, 428950, 466250, 857900, 932500, 1072375, 2144750, 4289500, 5361875, 10723750, 21447500]

約数ペア:

[(1, 21447500), (2, 10723750), (4, 5361875), (5, 4289500), (10, 2144750), (20, 1072375), (23, 932500), (25, 857900), (46, 466250), (50, 428950), (92, 233125), (100, 214475), (115, 186500), (125, 171580), (230, 93250), (250, 85790), (373, 57500), (460, 46625), (500, 42895), (575, 37300), (625, 34316), (746, 28750), (1150, 18650), (1250, 17158), (1492, 14375), (1865, 11500), (2300, 9325), (2500, 8579), (2875, 7460), (3730, 5750)]