20316240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 240

約数和(自身を含む): 81244800

約数和(自身を除く): 60928560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 48, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 105, 112, 116, 120, 126, 139, 140, 144, 145, 168, 174, 180, 203, 210, 232, 240, 252, 261, 278, 280, 290, 315, 336, 348, 360, 406, 417, 420, 435, 464, 504, 522, 556, 560, 580, 609, 630, 695, 696, 720, 812, 834, 840, 870, 973, 1008, 1015, 1044, 1112, 1160, 1218, 1251, 1260, 1305, 1390, 1392, 1624, 1668, 1680, 1740, 1827, 1946, 2030, 2085, 2088, 2224, 2320, 2436, 2502, 2520, 2610, 2780, 2919, 3045, 3248, 3336, 3480, 3654, 3892, 4031, 4060, 4170, 4176, 4865, 4872, 5004, 5040, 5220, 5560, 5838, 6090, 6255, 6672, 6960, 7308, 7784, 8062, 8120, 8340, 8757, 9135, 9730, 9744, 10008, 10440, 11120, 11676, 12093, 12180, 12510, 14595, 14616, 15568, 16124, 16240, 16680, 17514, 18270, 19460, 20016, 20155, 20880, 23352, 24186, 24360, 25020, 28217, 29190, 29232, 32248, 33360, 35028, 36279, 36540, 38920, 40310, 43785, 46704, 48372, 48720, 50040, 56434, 58380, 60465, 64496, 70056, 72558, 73080, 77840, 80620, 84651, 87570, 96744, 100080, 112868, 116760, 120930, 140112, 141085, 145116, 146160, 161240, 169302, 175140, 181395, 193488, 225736, 233520, 241860, 253953, 282170, 290232, 322480, 338604, 350280, 362790, 423255, 451472, 483720, 507906, 564340, 580464, 677208, 700560, 725580, 846510, 967440, 1015812, 1128680, 1269765, 1354416, 1451160, 1693020, 2031624, 2257360, 2539530, 2902320, 3386040, 4063248, 5079060, 6772080, 10158120, 20316240]

約数ペア:

[(1, 20316240), (2, 10158120), (3, 6772080), (4, 5079060), (5, 4063248), (6, 3386040), (7, 2902320), (8, 2539530), (9, 2257360), (10, 2031624), (12, 1693020), (14, 1451160), (15, 1354416), (16, 1269765), (18, 1128680), (20, 1015812), (21, 967440), (24, 846510), (28, 725580), (29, 700560), (30, 677208), (35, 580464), (36, 564340), (40, 507906), (42, 483720), (45, 451472), (48, 423255), (56, 362790), (58, 350280), (60, 338604), (63, 322480), (70, 290232), (72, 282170), (80, 253953), (84, 241860), (87, 233520), (90, 225736), (105, 193488), (112, 181395), (116, 175140), (120, 169302), (126, 161240), (139, 146160), (140, 145116), (144, 141085), (145, 140112), (168, 120930), (174, 116760), (180, 112868), (203, 100080), (210, 96744), (232, 87570), (240, 84651), (252, 80620), (261, 77840), (278, 73080), (280, 72558), (290, 70056), (315, 64496), (336, 60465), (348, 58380), (360, 56434), (406, 50040), (417, 48720), (420, 48372), (435, 46704), (464, 43785), (504, 40310), (522, 38920), (556, 36540), (560, 36279), (580, 35028), (609, 33360), (630, 32248), (695, 29232), (696, 29190), (720, 28217), (812, 25020), (834, 24360), (840, 24186), (870, 23352), (973, 20880), (1008, 20155), (1015, 20016), (1044, 19460), (1112, 18270), (1160, 17514), (1218, 16680), (1251, 16240), (1260, 16124), (1305, 15568), (1390, 14616), (1392, 14595), (1624, 12510), (1668, 12180), (1680, 12093), (1740, 11676), (1827, 11120), (1946, 10440), (2030, 10008), (2085, 9744), (2088, 9730), (2224, 9135), (2320, 8757), (2436, 8340), (2502, 8120), (2520, 8062), (2610, 7784), (2780, 7308), (2919, 6960), (3045, 6672), (3248, 6255), (3336, 6090), (3480, 5838), (3654, 5560), (3892, 5220), (4031, 5040), (4060, 5004), (4170, 4872), (4176, 4865)]