22390000

素因数分解:

$2^4\times 5^4\times {\mathrm{2239}}^1$

素因数の和:2267

約数の個数: 50

約数和(自身を含む): 54232640

約数和(自身を除く): 31842640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2239, 2500, 4478, 5000, 8956, 10000, 11195, 17912, 22390, 35824, 44780, 55975, 89560, 111950, 179120, 223900, 279875, 447800, 559750, 895600, 1119500, 1399375, 2239000, 2798750, 4478000, 5597500, 11195000, 22390000]

約数ペア:

[(1, 22390000), (2, 11195000), (4, 5597500), (5, 4478000), (8, 2798750), (10, 2239000), (16, 1399375), (20, 1119500), (25, 895600), (40, 559750), (50, 447800), (80, 279875), (100, 223900), (125, 179120), (200, 111950), (250, 89560), (400, 55975), (500, 44780), (625, 35824), (1000, 22390), (1250, 17912), (2000, 11195), (2239, 10000), (2500, 8956), (4478, 5000)]