19663600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 53277840

約数和(自身を除く): 33614240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 41, 44, 50, 55, 80, 82, 88, 100, 109, 110, 164, 176, 200, 205, 218, 220, 275, 328, 400, 410, 436, 440, 451, 545, 550, 656, 820, 872, 880, 902, 1025, 1090, 1100, 1199, 1640, 1744, 1804, 2050, 2180, 2200, 2255, 2398, 2725, 3280, 3608, 4100, 4360, 4400, 4469, 4510, 4796, 5450, 5995, 7216, 8200, 8720, 8938, 9020, 9592, 10900, 11275, 11990, 16400, 17876, 18040, 19184, 21800, 22345, 22550, 23980, 29975, 35752, 36080, 43600, 44690, 45100, 47960, 49159, 59950, 71504, 89380, 90200, 95920, 98318, 111725, 119900, 178760, 180400, 196636, 223450, 239800, 245795, 357520, 393272, 446900, 479600, 491590, 786544, 893800, 983180, 1228975, 1787600, 1966360, 2457950, 3932720, 4915900, 9831800, 19663600]

約数ペア:

[(1, 19663600), (2, 9831800), (4, 4915900), (5, 3932720), (8, 2457950), (10, 1966360), (11, 1787600), (16, 1228975), (20, 983180), (22, 893800), (25, 786544), (40, 491590), (41, 479600), (44, 446900), (50, 393272), (55, 357520), (80, 245795), (82, 239800), (88, 223450), (100, 196636), (109, 180400), (110, 178760), (164, 119900), (176, 111725), (200, 98318), (205, 95920), (218, 90200), (220, 89380), (275, 71504), (328, 59950), (400, 49159), (410, 47960), (436, 45100), (440, 44690), (451, 43600), (545, 36080), (550, 35752), (656, 29975), (820, 23980), (872, 22550), (880, 22345), (902, 21800), (1025, 19184), (1090, 18040), (1100, 17876), (1199, 16400), (1640, 11990), (1744, 11275), (1804, 10900), (2050, 9592), (2180, 9020), (2200, 8938), (2255, 8720), (2398, 8200), (2725, 7216), (3280, 5995), (3608, 5450), (4100, 4796), (4360, 4510), (4400, 4469)]