19903400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 51559200

約数和(自身を除く): 31655800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 83, 88, 100, 109, 110, 166, 200, 218, 220, 275, 332, 415, 436, 440, 545, 550, 664, 830, 872, 913, 1090, 1100, 1199, 1660, 1826, 2075, 2180, 2200, 2398, 2725, 3320, 3652, 4150, 4360, 4565, 4796, 5450, 5995, 7304, 8300, 9047, 9130, 9592, 10900, 11990, 16600, 18094, 18260, 21800, 22825, 23980, 29975, 36188, 36520, 45235, 45650, 47960, 59950, 72376, 90470, 91300, 99517, 119900, 180940, 182600, 199034, 226175, 239800, 361880, 398068, 452350, 497585, 796136, 904700, 995170, 1809400, 1990340, 2487925, 3980680, 4975850, 9951700, 19903400]

約数ペア:

[(1, 19903400), (2, 9951700), (4, 4975850), (5, 3980680), (8, 2487925), (10, 1990340), (11, 1809400), (20, 995170), (22, 904700), (25, 796136), (40, 497585), (44, 452350), (50, 398068), (55, 361880), (83, 239800), (88, 226175), (100, 199034), (109, 182600), (110, 180940), (166, 119900), (200, 99517), (218, 91300), (220, 90470), (275, 72376), (332, 59950), (415, 47960), (436, 45650), (440, 45235), (545, 36520), (550, 36188), (664, 29975), (830, 23980), (872, 22825), (913, 21800), (1090, 18260), (1100, 18094), (1199, 16600), (1660, 11990), (1826, 10900), (2075, 9592), (2180, 9130), (2200, 9047), (2398, 8300), (2725, 7304), (3320, 5995), (3652, 5450), (4150, 4796), (4360, 4565)]