11990000

素因数分解:

$2^4\times 5^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:148

約数の個数: 100

約数和(自身を含む): 31958520

約数和(自身を除く): 19968520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 109, 110, 125, 176, 200, 218, 220, 250, 275, 400, 436, 440, 500, 545, 550, 625, 872, 880, 1000, 1090, 1100, 1199, 1250, 1375, 1744, 2000, 2180, 2200, 2398, 2500, 2725, 2750, 4360, 4400, 4796, 5000, 5450, 5500, 5995, 6875, 8720, 9592, 10000, 10900, 11000, 11990, 13625, 13750, 19184, 21800, 22000, 23980, 27250, 27500, 29975, 43600, 47960, 54500, 55000, 59950, 68125, 95920, 109000, 110000, 119900, 136250, 149875, 218000, 239800, 272500, 299750, 479600, 545000, 599500, 749375, 1090000, 1199000, 1498750, 2398000, 2997500, 5995000, 11990000]

約数ペア:

[(1, 11990000), (2, 5995000), (4, 2997500), (5, 2398000), (8, 1498750), (10, 1199000), (11, 1090000), (16, 749375), (20, 599500), (22, 545000), (25, 479600), (40, 299750), (44, 272500), (50, 239800), (55, 218000), (80, 149875), (88, 136250), (100, 119900), (109, 110000), (110, 109000), (125, 95920), (176, 68125), (200, 59950), (218, 55000), (220, 54500), (250, 47960), (275, 43600), (400, 29975), (436, 27500), (440, 27250), (500, 23980), (545, 22000), (550, 21800), (625, 19184), (872, 13750), (880, 13625), (1000, 11990), (1090, 11000), (1100, 10900), (1199, 10000), (1250, 9592), (1375, 8720), (1744, 6875), (2000, 5995), (2180, 5500), (2200, 5450), (2398, 5000), (2500, 4796), (2725, 4400), (2750, 4360)]