27721260

素因数分解:

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

素因数の和:485

約数の個数: 144

約数和(自身を含む): 98280000

約数和(自身を除く): 70558740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 449, 490, 588, 630, 686, 735, 882, 898, 980, 1029, 1260, 1347, 1372, 1470, 1715, 1764, 1796, 2058, 2205, 2245, 2694, 2940, 3087, 3143, 3430, 4041, 4116, 4410, 4490, 5145, 5388, 6174, 6286, 6735, 6860, 8082, 8820, 8980, 9429, 10290, 12348, 12572, 13470, 15435, 15715, 16164, 18858, 20205, 20580, 22001, 26940, 28287, 30870, 31430, 37716, 40410, 44002, 47145, 56574, 61740, 62860, 66003, 80820, 88004, 94290, 110005, 113148, 132006, 141435, 154007, 188580, 198009, 220010, 264012, 282870, 308014, 330015, 396018, 440020, 462021, 565740, 616028, 660030, 770035, 792036, 924042, 990045, 1320060, 1386063, 1540070, 1848084, 1980090, 2310105, 2772126, 3080140, 3960180, 4620210, 5544252, 6930315, 9240420, 13860630, 27721260]

約数ペア:

[(1, 27721260), (2, 13860630), (3, 9240420), (4, 6930315), (5, 5544252), (6, 4620210), (7, 3960180), (9, 3080140), (10, 2772126), (12, 2310105), (14, 1980090), (15, 1848084), (18, 1540070), (20, 1386063), (21, 1320060), (28, 990045), (30, 924042), (35, 792036), (36, 770035), (42, 660030), (45, 616028), (49, 565740), (60, 462021), (63, 440020), (70, 396018), (84, 330015), (90, 308014), (98, 282870), (105, 264012), (126, 220010), (140, 198009), (147, 188580), (180, 154007), (196, 141435), (210, 132006), (245, 113148), (252, 110005), (294, 94290), (315, 88004), (343, 80820), (420, 66003), (441, 62860), (449, 61740), (490, 56574), (588, 47145), (630, 44002), (686, 40410), (735, 37716), (882, 31430), (898, 30870), (980, 28287), (1029, 26940), (1260, 22001), (1347, 20580), (1372, 20205), (1470, 18858), (1715, 16164), (1764, 15715), (1796, 15435), (2058, 13470), (2205, 12572), (2245, 12348), (2694, 10290), (2940, 9429), (3087, 8980), (3143, 8820), (3430, 8082), (4041, 6860), (4116, 6735), (4410, 6286), (4490, 6174), (5145, 5388)]