23980000

素因数分解:

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

素因数の和:150

約数の個数: 120

約数和(自身を含む): 64947960

約数和(自身を除く): 40967960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 109, 110, 125, 160, 176, 200, 218, 220, 250, 275, 352, 400, 436, 440, 500, 545, 550, 625, 800, 872, 880, 1000, 1090, 1100, 1199, 1250, 1375, 1744, 1760, 2000, 2180, 2200, 2398, 2500, 2725, 2750, 3488, 4000, 4360, 4400, 4796, 5000, 5450, 5500, 5995, 6875, 8720, 8800, 9592, 10000, 10900, 11000, 11990, 13625, 13750, 17440, 19184, 20000, 21800, 22000, 23980, 27250, 27500, 29975, 38368, 43600, 44000, 47960, 54500, 55000, 59950, 68125, 87200, 95920, 109000, 110000, 119900, 136250, 149875, 191840, 218000, 220000, 239800, 272500, 299750, 436000, 479600, 545000, 599500, 749375, 959200, 1090000, 1199000, 1498750, 2180000, 2398000, 2997500, 4796000, 5995000, 11990000, 23980000]

約数ペア:

[(1, 23980000), (2, 11990000), (4, 5995000), (5, 4796000), (8, 2997500), (10, 2398000), (11, 2180000), (16, 1498750), (20, 1199000), (22, 1090000), (25, 959200), (32, 749375), (40, 599500), (44, 545000), (50, 479600), (55, 436000), (80, 299750), (88, 272500), (100, 239800), (109, 220000), (110, 218000), (125, 191840), (160, 149875), (176, 136250), (200, 119900), (218, 110000), (220, 109000), (250, 95920), (275, 87200), (352, 68125), (400, 59950), (436, 55000), (440, 54500), (500, 47960), (545, 44000), (550, 43600), (625, 38368), (800, 29975), (872, 27500), (880, 27250), (1000, 23980), (1090, 22000), (1100, 21800), (1199, 20000), (1250, 19184), (1375, 17440), (1744, 13750), (1760, 13625), (2000, 11990), (2180, 11000), (2200, 10900), (2398, 10000), (2500, 9592), (2725, 8800), (2750, 8720), (3488, 6875), (4000, 5995), (4360, 5500), (4400, 5450), (4796, 5000)]