19209520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 30287312

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 83, 88, 110, 166, 176, 220, 263, 332, 415, 440, 526, 664, 830, 880, 913, 1052, 1315, 1328, 1660, 1826, 2104, 2630, 2893, 3320, 3652, 4208, 4565, 5260, 5786, 6640, 7304, 9130, 10520, 11572, 14465, 14608, 18260, 21040, 21829, 23144, 28930, 36520, 43658, 46288, 57860, 73040, 87316, 109145, 115720, 174632, 218290, 231440, 240119, 349264, 436580, 480238, 873160, 960476, 1200595, 1746320, 1920952, 2401190, 3841904, 4802380, 9604760, 19209520]

約数ペア:

[(1, 19209520), (2, 9604760), (4, 4802380), (5, 3841904), (8, 2401190), (10, 1920952), (11, 1746320), (16, 1200595), (20, 960476), (22, 873160), (40, 480238), (44, 436580), (55, 349264), (80, 240119), (83, 231440), (88, 218290), (110, 174632), (166, 115720), (176, 109145), (220, 87316), (263, 73040), (332, 57860), (415, 46288), (440, 43658), (526, 36520), (664, 28930), (830, 23144), (880, 21829), (913, 21040), (1052, 18260), (1315, 14608), (1328, 14465), (1660, 11572), (1826, 10520), (2104, 9130), (2630, 7304), (2893, 6640), (3320, 5786), (3652, 5260), (4208, 4565)]