28512720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{199}}^2$

素因数の和:417

約数の個数: 90

約数和(自身を含む): 96238818

約数和(自身を除く): 67726098

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 199, 240, 360, 398, 597, 720, 796, 995, 1194, 1592, 1791, 1990, 2388, 2985, 3184, 3582, 3980, 4776, 5970, 7164, 7960, 8955, 9552, 11940, 14328, 15920, 17910, 23880, 28656, 35820, 39601, 47760, 71640, 79202, 118803, 143280, 158404, 198005, 237606, 316808, 356409, 396010, 475212, 594015, 633616, 712818, 792020, 950424, 1188030, 1425636, 1584040, 1782045, 1900848, 2376060, 2851272, 3168080, 3564090, 4752120, 5702544, 7128180, 9504240, 14256360, 28512720]

約数ペア:

[(1, 28512720), (2, 14256360), (3, 9504240), (4, 7128180), (5, 5702544), (6, 4752120), (8, 3564090), (9, 3168080), (10, 2851272), (12, 2376060), (15, 1900848), (16, 1782045), (18, 1584040), (20, 1425636), (24, 1188030), (30, 950424), (36, 792020), (40, 712818), (45, 633616), (48, 594015), (60, 475212), (72, 396010), (80, 356409), (90, 316808), (120, 237606), (144, 198005), (180, 158404), (199, 143280), (240, 118803), (360, 79202), (398, 71640), (597, 47760), (720, 39601), (796, 35820), (995, 28656), (1194, 23880), (1592, 17910), (1791, 15920), (1990, 14328), (2388, 11940), (2985, 9552), (3184, 8955), (3582, 7960), (3980, 7164), (4776, 5970)]