11720720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{701}}^1$

素因数の和:744

約数の個数: 80

約数和(自身を含む): 31337280

約数和(自身を除く): 19616560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 701, 760, 836, 880, 1045, 1402, 1520, 1672, 2090, 2804, 3344, 3505, 4180, 5608, 7010, 7711, 8360, 11216, 13319, 14020, 15422, 16720, 26638, 28040, 30844, 38555, 53276, 56080, 61688, 66595, 77110, 106552, 123376, 133190, 146509, 154220, 213104, 266380, 293018, 308440, 532760, 586036, 616880, 732545, 1065520, 1172072, 1465090, 2344144, 2930180, 5860360, 11720720]

約数ペア:

[(1, 11720720), (2, 5860360), (4, 2930180), (5, 2344144), (8, 1465090), (10, 1172072), (11, 1065520), (16, 732545), (19, 616880), (20, 586036), (22, 532760), (38, 308440), (40, 293018), (44, 266380), (55, 213104), (76, 154220), (80, 146509), (88, 133190), (95, 123376), (110, 106552), (152, 77110), (176, 66595), (190, 61688), (209, 56080), (220, 53276), (304, 38555), (380, 30844), (418, 28040), (440, 26638), (701, 16720), (760, 15422), (836, 14020), (880, 13319), (1045, 11216), (1402, 8360), (1520, 7711), (1672, 7010), (2090, 5608), (2804, 4180), (3344, 3505)]