81764340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:199

約数の個数: 192

約数和(自身を含む): 278208000

約数和(自身を除く): 196443660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 137, 140, 145, 147, 174, 196, 203, 210, 245, 274, 290, 294, 343, 348, 406, 411, 420, 435, 490, 548, 580, 588, 609, 685, 686, 735, 812, 822, 870, 959, 980, 1015, 1029, 1218, 1370, 1372, 1421, 1470, 1644, 1715, 1740, 1918, 2030, 2055, 2058, 2436, 2740, 2842, 2877, 2940, 3045, 3430, 3836, 3973, 4060, 4110, 4116, 4263, 4795, 5145, 5684, 5754, 6090, 6713, 6860, 7105, 7946, 8220, 8526, 9590, 9947, 10290, 11508, 11919, 12180, 13426, 14210, 14385, 15892, 17052, 19180, 19865, 19894, 20139, 20580, 21315, 23838, 26852, 27811, 28420, 28770, 29841, 33565, 39730, 39788, 40278, 42630, 46991, 47676, 49735, 55622, 57540, 59595, 59682, 67130, 79460, 80556, 83433, 85260, 93982, 99470, 100695, 111244, 119190, 119364, 134260, 139055, 140973, 149205, 166866, 187964, 194677, 198940, 201390, 234955, 238380, 278110, 281946, 298410, 333732, 389354, 402780, 417165, 469910, 556220, 563892, 584031, 596820, 704865, 778708, 834330, 939820, 973385, 1168062, 1362739, 1409730, 1668660, 1946770, 2336124, 2725478, 2819460, 2920155, 3893540, 4088217, 5450956, 5840310, 6813695, 8176434, 11680620, 13627390, 16352868, 20441085, 27254780, 40882170, 81764340]

約数ペア:

[(1, 81764340), (2, 40882170), (3, 27254780), (4, 20441085), (5, 16352868), (6, 13627390), (7, 11680620), (10, 8176434), (12, 6813695), (14, 5840310), (15, 5450956), (20, 4088217), (21, 3893540), (28, 2920155), (29, 2819460), (30, 2725478), (35, 2336124), (42, 1946770), (49, 1668660), (58, 1409730), (60, 1362739), (70, 1168062), (84, 973385), (87, 939820), (98, 834330), (105, 778708), (116, 704865), (137, 596820), (140, 584031), (145, 563892), (147, 556220), (174, 469910), (196, 417165), (203, 402780), (210, 389354), (245, 333732), (274, 298410), (290, 281946), (294, 278110), (343, 238380), (348, 234955), (406, 201390), (411, 198940), (420, 194677), (435, 187964), (490, 166866), (548, 149205), (580, 140973), (588, 139055), (609, 134260), (685, 119364), (686, 119190), (735, 111244), (812, 100695), (822, 99470), (870, 93982), (959, 85260), (980, 83433), (1015, 80556), (1029, 79460), (1218, 67130), (1370, 59682), (1372, 59595), (1421, 57540), (1470, 55622), (1644, 49735), (1715, 47676), (1740, 46991), (1918, 42630), (2030, 40278), (2055, 39788), (2058, 39730), (2436, 33565), (2740, 29841), (2842, 28770), (2877, 28420), (2940, 27811), (3045, 26852), (3430, 23838), (3836, 21315), (3973, 20580), (4060, 20139), (4110, 19894), (4116, 19865), (4263, 19180), (4795, 17052), (5145, 15892), (5684, 14385), (5754, 14210), (6090, 13426), (6713, 12180), (6860, 11919), (7105, 11508), (7946, 10290), (8220, 9947), (8526, 9590)]