12780180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^3\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 240

約数和(自身を含む): 48787200

約数和(自身を除く): 36007020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 49, 54, 60, 63, 69, 70, 81, 84, 90, 92, 98, 105, 108, 115, 126, 135, 138, 140, 147, 161, 162, 180, 189, 196, 207, 210, 230, 245, 252, 270, 276, 294, 315, 322, 324, 343, 345, 378, 405, 414, 420, 441, 460, 483, 490, 540, 567, 588, 621, 630, 644, 686, 690, 735, 756, 805, 810, 828, 882, 945, 966, 980, 1029, 1035, 1127, 1134, 1242, 1260, 1323, 1372, 1380, 1449, 1470, 1610, 1620, 1715, 1764, 1863, 1890, 1932, 2058, 2070, 2205, 2254, 2268, 2415, 2484, 2646, 2835, 2898, 2940, 3087, 3105, 3220, 3381, 3430, 3726, 3780, 3969, 4116, 4140, 4347, 4410, 4508, 4830, 5145, 5292, 5635, 5670, 5796, 6174, 6210, 6615, 6762, 6860, 7245, 7452, 7889, 7938, 8694, 8820, 9261, 9315, 9660, 10143, 10290, 11270, 11340, 12348, 12420, 13041, 13230, 13524, 14490, 15435, 15778, 15876, 16905, 17388, 18522, 18630, 19845, 20286, 20580, 21735, 22540, 23667, 26082, 26460, 27783, 28980, 30429, 30870, 31556, 33810, 37044, 37260, 39445, 39690, 40572, 43470, 46305, 47334, 50715, 52164, 55566, 60858, 61740, 65205, 67620, 71001, 78890, 79380, 86940, 91287, 92610, 94668, 101430, 111132, 118335, 121716, 130410, 138915, 142002, 152145, 157780, 182574, 185220, 202860, 213003, 236670, 260820, 277830, 284004, 304290, 355005, 365148, 426006, 456435, 473340, 555660, 608580, 639009, 710010, 852012, 912870, 1065015, 1278018, 1420020, 1825740, 2130030, 2556036, 3195045, 4260060, 6390090, 12780180]

約数ペア:

[(1, 12780180), (2, 6390090), (3, 4260060), (4, 3195045), (5, 2556036), (6, 2130030), (7, 1825740), (9, 1420020), (10, 1278018), (12, 1065015), (14, 912870), (15, 852012), (18, 710010), (20, 639009), (21, 608580), (23, 555660), (27, 473340), (28, 456435), (30, 426006), (35, 365148), (36, 355005), (42, 304290), (45, 284004), (46, 277830), (49, 260820), (54, 236670), (60, 213003), (63, 202860), (69, 185220), (70, 182574), (81, 157780), (84, 152145), (90, 142002), (92, 138915), (98, 130410), (105, 121716), (108, 118335), (115, 111132), (126, 101430), (135, 94668), (138, 92610), (140, 91287), (147, 86940), (161, 79380), (162, 78890), (180, 71001), (189, 67620), (196, 65205), (207, 61740), (210, 60858), (230, 55566), (245, 52164), (252, 50715), (270, 47334), (276, 46305), (294, 43470), (315, 40572), (322, 39690), (324, 39445), (343, 37260), (345, 37044), (378, 33810), (405, 31556), (414, 30870), (420, 30429), (441, 28980), (460, 27783), (483, 26460), (490, 26082), (540, 23667), (567, 22540), (588, 21735), (621, 20580), (630, 20286), (644, 19845), (686, 18630), (690, 18522), (735, 17388), (756, 16905), (805, 15876), (810, 15778), (828, 15435), (882, 14490), (945, 13524), (966, 13230), (980, 13041), (1029, 12420), (1035, 12348), (1127, 11340), (1134, 11270), (1242, 10290), (1260, 10143), (1323, 9660), (1372, 9315), (1380, 9261), (1449, 8820), (1470, 8694), (1610, 7938), (1620, 7889), (1715, 7452), (1764, 7245), (1863, 6860), (1890, 6762), (1932, 6615), (2058, 6210), (2070, 6174), (2205, 5796), (2254, 5670), (2268, 5635), (2415, 5292), (2484, 5145), (2646, 4830), (2835, 4508), (2898, 4410), (2940, 4347), (3087, 4140), (3105, 4116), (3220, 3969), (3381, 3780), (3430, 3726)]