31681440

素因数分解:

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

素因数の和:484

約数の個数: 216

約数和(自身を含む): 126044100

約数和(自身を除く): 94362660

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 449, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 898, 980, 1008, 1120, 1176, 1260, 1347, 1440, 1470, 1568, 1680, 1764, 1796, 1960, 2016, 2205, 2245, 2352, 2520, 2694, 2940, 3143, 3360, 3528, 3592, 3920, 4041, 4410, 4490, 4704, 5040, 5388, 5880, 6286, 6735, 7056, 7184, 7840, 8082, 8820, 8980, 9429, 10080, 10776, 11760, 12572, 13470, 14112, 14368, 15715, 16164, 17640, 17960, 18858, 20205, 21552, 22001, 23520, 25144, 26940, 28287, 31430, 32328, 35280, 35920, 37716, 40410, 43104, 44002, 47145, 50288, 53880, 56574, 62860, 64656, 66003, 70560, 71840, 75432, 80820, 88004, 94290, 100576, 107760, 110005, 113148, 125720, 129312, 132006, 141435, 150864, 161640, 176008, 188580, 198009, 215520, 220010, 226296, 251440, 264012, 282870, 301728, 323280, 330015, 352016, 377160, 396018, 440020, 452592, 502880, 528024, 565740, 646560, 660030, 704032, 754320, 792036, 880040, 905184, 990045, 1056048, 1131480, 1320060, 1508640, 1584072, 1760080, 1980090, 2112096, 2262960, 2640120, 3168144, 3520160, 3960180, 4525920, 5280240, 6336288, 7920360, 10560480, 15840720, 31681440]

約数ペア:

[(1, 31681440), (2, 15840720), (3, 10560480), (4, 7920360), (5, 6336288), (6, 5280240), (7, 4525920), (8, 3960180), (9, 3520160), (10, 3168144), (12, 2640120), (14, 2262960), (15, 2112096), (16, 1980090), (18, 1760080), (20, 1584072), (21, 1508640), (24, 1320060), (28, 1131480), (30, 1056048), (32, 990045), (35, 905184), (36, 880040), (40, 792036), (42, 754320), (45, 704032), (48, 660030), (49, 646560), (56, 565740), (60, 528024), (63, 502880), (70, 452592), (72, 440020), (80, 396018), (84, 377160), (90, 352016), (96, 330015), (98, 323280), (105, 301728), (112, 282870), (120, 264012), (126, 251440), (140, 226296), (144, 220010), (147, 215520), (160, 198009), (168, 188580), (180, 176008), (196, 161640), (210, 150864), (224, 141435), (240, 132006), (245, 129312), (252, 125720), (280, 113148), (288, 110005), (294, 107760), (315, 100576), (336, 94290), (360, 88004), (392, 80820), (420, 75432), (441, 71840), (449, 70560), (480, 66003), (490, 64656), (504, 62860), (560, 56574), (588, 53880), (630, 50288), (672, 47145), (720, 44002), (735, 43104), (784, 40410), (840, 37716), (882, 35920), (898, 35280), (980, 32328), (1008, 31430), (1120, 28287), (1176, 26940), (1260, 25144), (1347, 23520), (1440, 22001), (1470, 21552), (1568, 20205), (1680, 18858), (1764, 17960), (1796, 17640), (1960, 16164), (2016, 15715), (2205, 14368), (2245, 14112), (2352, 13470), (2520, 12572), (2694, 11760), (2940, 10776), (3143, 10080), (3360, 9429), (3528, 8980), (3592, 8820), (3920, 8082), (4041, 7840), (4410, 7184), (4490, 7056), (4704, 6735), (5040, 6286), (5388, 5880)]