15840720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{449}}^1$

素因数の和:482

約数の個数: 180

約数和(自身を含む): 62021700

約数和(自身を除く): 46180980

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 449, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 898, 980, 1008, 1176, 1260, 1347, 1470, 1680, 1764, 1796, 1960, 2205, 2245, 2352, 2520, 2694, 2940, 3143, 3528, 3592, 3920, 4041, 4410, 4490, 5040, 5388, 5880, 6286, 6735, 7056, 7184, 8082, 8820, 8980, 9429, 10776, 11760, 12572, 13470, 15715, 16164, 17640, 17960, 18858, 20205, 21552, 22001, 25144, 26940, 28287, 31430, 32328, 35280, 35920, 37716, 40410, 44002, 47145, 50288, 53880, 56574, 62860, 64656, 66003, 75432, 80820, 88004, 94290, 107760, 110005, 113148, 125720, 132006, 141435, 150864, 161640, 176008, 188580, 198009, 220010, 226296, 251440, 264012, 282870, 323280, 330015, 352016, 377160, 396018, 440020, 452592, 528024, 565740, 660030, 754320, 792036, 880040, 990045, 1056048, 1131480, 1320060, 1584072, 1760080, 1980090, 2262960, 2640120, 3168144, 3960180, 5280240, 7920360, 15840720]

約数ペア:

[(1, 15840720), (2, 7920360), (3, 5280240), (4, 3960180), (5, 3168144), (6, 2640120), (7, 2262960), (8, 1980090), (9, 1760080), (10, 1584072), (12, 1320060), (14, 1131480), (15, 1056048), (16, 990045), (18, 880040), (20, 792036), (21, 754320), (24, 660030), (28, 565740), (30, 528024), (35, 452592), (36, 440020), (40, 396018), (42, 377160), (45, 352016), (48, 330015), (49, 323280), (56, 282870), (60, 264012), (63, 251440), (70, 226296), (72, 220010), (80, 198009), (84, 188580), (90, 176008), (98, 161640), (105, 150864), (112, 141435), (120, 132006), (126, 125720), (140, 113148), (144, 110005), (147, 107760), (168, 94290), (180, 88004), (196, 80820), (210, 75432), (240, 66003), (245, 64656), (252, 62860), (280, 56574), (294, 53880), (315, 50288), (336, 47145), (360, 44002), (392, 40410), (420, 37716), (441, 35920), (449, 35280), (490, 32328), (504, 31430), (560, 28287), (588, 26940), (630, 25144), (720, 22001), (735, 21552), (784, 20205), (840, 18858), (882, 17960), (898, 17640), (980, 16164), (1008, 15715), (1176, 13470), (1260, 12572), (1347, 11760), (1470, 10776), (1680, 9429), (1764, 8980), (1796, 8820), (1960, 8082), (2205, 7184), (2245, 7056), (2352, 6735), (2520, 6286), (2694, 5880), (2940, 5388), (3143, 5040), (3528, 4490), (3592, 4410), (3920, 4041)]