128307240

素因数分解:

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

素因数の和:421

約数の個数: 120

約数和(自身を含む): 433432890

約数和(自身を除く): 305125650

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 199, 216, 270, 324, 360, 398, 405, 540, 597, 648, 796, 810, 995, 1080, 1194, 1592, 1620, 1791, 1990, 2388, 2985, 3240, 3582, 3980, 4776, 5373, 5970, 7164, 7960, 8955, 10746, 11940, 14328, 16119, 17910, 21492, 23880, 26865, 32238, 35820, 39601, 42984, 53730, 64476, 71640, 79202, 80595, 107460, 118803, 128952, 158404, 161190, 198005, 214920, 237606, 316808, 322380, 356409, 396010, 475212, 594015, 644760, 712818, 792020, 950424, 1069227, 1188030, 1425636, 1584040, 1782045, 2138454, 2376060, 2851272, 3207681, 3564090, 4276908, 4752120, 5346135, 6415362, 7128180, 8553816, 10692270, 12830724, 14256360, 16038405, 21384540, 25661448, 32076810, 42769080, 64153620, 128307240]

約数ペア:

[(1, 128307240), (2, 64153620), (3, 42769080), (4, 32076810), (5, 25661448), (6, 21384540), (8, 16038405), (9, 14256360), (10, 12830724), (12, 10692270), (15, 8553816), (18, 7128180), (20, 6415362), (24, 5346135), (27, 4752120), (30, 4276908), (36, 3564090), (40, 3207681), (45, 2851272), (54, 2376060), (60, 2138454), (72, 1782045), (81, 1584040), (90, 1425636), (108, 1188030), (120, 1069227), (135, 950424), (162, 792020), (180, 712818), (199, 644760), (216, 594015), (270, 475212), (324, 396010), (360, 356409), (398, 322380), (405, 316808), (540, 237606), (597, 214920), (648, 198005), (796, 161190), (810, 158404), (995, 128952), (1080, 118803), (1194, 107460), (1592, 80595), (1620, 79202), (1791, 71640), (1990, 64476), (2388, 53730), (2985, 42984), (3240, 39601), (3582, 35820), (3980, 32238), (4776, 26865), (5373, 23880), (5970, 21492), (7164, 17910), (7960, 16119), (8955, 14328), (10746, 11940)]