257423628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:129

約数の個数: 288

約数和(自身を含む): 838942720

約数和(自身を除く): 581519092

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 28, 31, 33, 38, 42, 43, 44, 57, 62, 66, 76, 77, 84, 86, 93, 114, 121, 124, 129, 132, 133, 154, 172, 186, 209, 217, 228, 231, 242, 258, 266, 301, 308, 341, 363, 372, 399, 418, 434, 462, 473, 484, 516, 532, 589, 602, 627, 651, 682, 726, 798, 817, 836, 847, 868, 903, 924, 946, 1023, 1178, 1204, 1254, 1302, 1333, 1364, 1419, 1452, 1463, 1596, 1634, 1694, 1767, 1806, 1892, 2046, 2299, 2356, 2387, 2451, 2508, 2541, 2604, 2666, 2838, 2926, 3268, 3311, 3388, 3534, 3612, 3751, 3999, 4092, 4123, 4389, 4598, 4774, 4902, 5082, 5203, 5332, 5676, 5719, 5852, 6479, 6622, 6897, 7068, 7161, 7502, 7998, 8246, 8778, 8987, 9196, 9331, 9548, 9804, 9933, 10164, 10406, 11253, 11438, 12369, 12958, 13244, 13794, 14322, 14663, 15004, 15609, 15996, 16093, 16492, 17157, 17556, 17974, 18662, 19437, 19866, 20812, 22506, 22876, 24738, 25327, 25916, 26257, 26961, 27588, 27993, 28644, 29326, 31218, 32186, 34314, 35948, 36421, 37324, 38874, 39732, 43989, 45012, 45353, 48279, 49476, 50654, 52514, 53922, 55986, 58652, 62436, 62909, 64372, 68628, 71269, 72842, 75981, 77748, 78771, 87978, 90706, 96558, 98857, 101308, 102641, 105028, 107844, 109263, 111972, 125818, 136059, 142538, 145684, 151962, 157542, 161293, 175956, 177289, 181412, 188727, 193116, 197714, 205282, 213807, 218526, 251636, 272118, 278597, 285076, 296571, 303924, 307923, 315084, 322586, 354578, 377454, 395428, 410564, 427614, 437052, 483879, 498883, 531867, 544236, 557194, 593142, 615846, 645172, 691999, 709156, 754908, 835791, 855228, 967758, 997766, 1063734, 1114388, 1129051, 1186284, 1231692, 1383998, 1496649, 1671582, 1935516, 1950179, 1995532, 2075997, 2127468, 2258102, 2767996, 2993298, 3064567, 3343164, 3387153, 3900358, 4151994, 4516204, 5850537, 5986596, 6129134, 6774306, 7800716, 8303988, 9193701, 11701074, 12258268, 13548612, 18387402, 21451969, 23402148, 36774804, 42903938, 64355907, 85807876, 128711814, 257423628]

約数ペア:

[(1, 257423628), (2, 128711814), (3, 85807876), (4, 64355907), (6, 42903938), (7, 36774804), (11, 23402148), (12, 21451969), (14, 18387402), (19, 13548612), (21, 12258268), (22, 11701074), (28, 9193701), (31, 8303988), (33, 7800716), (38, 6774306), (42, 6129134), (43, 5986596), (44, 5850537), (57, 4516204), (62, 4151994), (66, 3900358), (76, 3387153), (77, 3343164), (84, 3064567), (86, 2993298), (93, 2767996), (114, 2258102), (121, 2127468), (124, 2075997), (129, 1995532), (132, 1950179), (133, 1935516), (154, 1671582), (172, 1496649), (186, 1383998), (209, 1231692), (217, 1186284), (228, 1129051), (231, 1114388), (242, 1063734), (258, 997766), (266, 967758), (301, 855228), (308, 835791), (341, 754908), (363, 709156), (372, 691999), (399, 645172), (418, 615846), (434, 593142), (462, 557194), (473, 544236), (484, 531867), (516, 498883), (532, 483879), (589, 437052), (602, 427614), (627, 410564), (651, 395428), (682, 377454), (726, 354578), (798, 322586), (817, 315084), (836, 307923), (847, 303924), (868, 296571), (903, 285076), (924, 278597), (946, 272118), (1023, 251636), (1178, 218526), (1204, 213807), (1254, 205282), (1302, 197714), (1333, 193116), (1364, 188727), (1419, 181412), (1452, 177289), (1463, 175956), (1596, 161293), (1634, 157542), (1694, 151962), (1767, 145684), (1806, 142538), (1892, 136059), (2046, 125818), (2299, 111972), (2356, 109263), (2387, 107844), (2451, 105028), (2508, 102641), (2541, 101308), (2604, 98857), (2666, 96558), (2838, 90706), (2926, 87978), (3268, 78771), (3311, 77748), (3388, 75981), (3534, 72842), (3612, 71269), (3751, 68628), (3999, 64372), (4092, 62909), (4123, 62436), (4389, 58652), (4598, 55986), (4774, 53922), (4902, 52514), (5082, 50654), (5203, 49476), (5332, 48279), (5676, 45353), (5719, 45012), (5852, 43989), (6479, 39732), (6622, 38874), (6897, 37324), (7068, 36421), (7161, 35948), (7502, 34314), (7998, 32186), (8246, 31218), (8778, 29326), (8987, 28644), (9196, 27993), (9331, 27588), (9548, 26961), (9804, 26257), (9933, 25916), (10164, 25327), (10406, 24738), (11253, 22876), (11438, 22506), (12369, 20812), (12958, 19866), (13244, 19437), (13794, 18662), (14322, 17974), (14663, 17556), (15004, 17157), (15609, 16492), (15996, 16093)]