18800000

素因数分解:

$2^7\times 5^5\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 96

約数和(自身を含む): 47809440

約数和(自身を除く): 29009440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 125, 128, 160, 188, 200, 235, 250, 320, 376, 400, 470, 500, 625, 640, 752, 800, 940, 1000, 1175, 1250, 1504, 1600, 1880, 2000, 2350, 2500, 3008, 3125, 3200, 3760, 4000, 4700, 5000, 5875, 6016, 6250, 7520, 8000, 9400, 10000, 11750, 12500, 15040, 16000, 18800, 20000, 23500, 25000, 29375, 30080, 37600, 40000, 47000, 50000, 58750, 75200, 80000, 94000, 100000, 117500, 146875, 150400, 188000, 200000, 235000, 293750, 376000, 400000, 470000, 587500, 752000, 940000, 1175000, 1880000, 2350000, 3760000, 4700000, 9400000, 18800000]

約数ペア:

[(1, 18800000), (2, 9400000), (4, 4700000), (5, 3760000), (8, 2350000), (10, 1880000), (16, 1175000), (20, 940000), (25, 752000), (32, 587500), (40, 470000), (47, 400000), (50, 376000), (64, 293750), (80, 235000), (94, 200000), (100, 188000), (125, 150400), (128, 146875), (160, 117500), (188, 100000), (200, 94000), (235, 80000), (250, 75200), (320, 58750), (376, 50000), (400, 47000), (470, 40000), (500, 37600), (625, 30080), (640, 29375), (752, 25000), (800, 23500), (940, 20000), (1000, 18800), (1175, 16000), (1250, 15040), (1504, 12500), (1600, 11750), (1880, 10000), (2000, 9400), (2350, 8000), (2500, 7520), (3008, 6250), (3125, 6016), (3200, 5875), (3760, 5000), (4000, 4700)]