81654720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 224

約数和(自身を含む): 307238400

約数和(自身を除く): 225583680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 64, 70, 80, 84, 87, 96, 105, 112, 116, 120, 140, 145, 160, 168, 174, 192, 203, 210, 224, 232, 240, 280, 290, 320, 336, 348, 406, 419, 420, 435, 448, 464, 480, 560, 580, 609, 672, 696, 812, 838, 840, 870, 928, 960, 1015, 1120, 1160, 1218, 1257, 1344, 1392, 1624, 1676, 1680, 1740, 1856, 2030, 2095, 2240, 2320, 2436, 2514, 2784, 2933, 3045, 3248, 3352, 3360, 3480, 4060, 4190, 4640, 4872, 5028, 5568, 5866, 6090, 6285, 6496, 6704, 6720, 6960, 8120, 8380, 8799, 9280, 9744, 10056, 11732, 12151, 12180, 12570, 12992, 13408, 13920, 14665, 16240, 16760, 17598, 19488, 20112, 23464, 24302, 24360, 25140, 26816, 27840, 29330, 32480, 33520, 35196, 36453, 38976, 40224, 43995, 46928, 48604, 48720, 50280, 58660, 60755, 64960, 67040, 70392, 72906, 80448, 85057, 87990, 93856, 97208, 97440, 100560, 117320, 121510, 134080, 140784, 145812, 170114, 175980, 182265, 187712, 194416, 194880, 201120, 234640, 243020, 255171, 281568, 291624, 340228, 351960, 364530, 388832, 402240, 425285, 469280, 486040, 510342, 563136, 583248, 680456, 703920, 729060, 777664, 850570, 938560, 972080, 1020684, 1166496, 1275855, 1360912, 1407840, 1458120, 1701140, 1944160, 2041368, 2332992, 2551710, 2721824, 2815680, 2916240, 3402280, 3888320, 4082736, 5103420, 5443648, 5832480, 6804560, 8165472, 10206840, 11664960, 13609120, 16330944, 20413680, 27218240, 40827360, 81654720]

約数ペア:

[(1, 81654720), (2, 40827360), (3, 27218240), (4, 20413680), (5, 16330944), (6, 13609120), (7, 11664960), (8, 10206840), (10, 8165472), (12, 6804560), (14, 5832480), (15, 5443648), (16, 5103420), (20, 4082736), (21, 3888320), (24, 3402280), (28, 2916240), (29, 2815680), (30, 2721824), (32, 2551710), (35, 2332992), (40, 2041368), (42, 1944160), (48, 1701140), (56, 1458120), (58, 1407840), (60, 1360912), (64, 1275855), (70, 1166496), (80, 1020684), (84, 972080), (87, 938560), (96, 850570), (105, 777664), (112, 729060), (116, 703920), (120, 680456), (140, 583248), (145, 563136), (160, 510342), (168, 486040), (174, 469280), (192, 425285), (203, 402240), (210, 388832), (224, 364530), (232, 351960), (240, 340228), (280, 291624), (290, 281568), (320, 255171), (336, 243020), (348, 234640), (406, 201120), (419, 194880), (420, 194416), (435, 187712), (448, 182265), (464, 175980), (480, 170114), (560, 145812), (580, 140784), (609, 134080), (672, 121510), (696, 117320), (812, 100560), (838, 97440), (840, 97208), (870, 93856), (928, 87990), (960, 85057), (1015, 80448), (1120, 72906), (1160, 70392), (1218, 67040), (1257, 64960), (1344, 60755), (1392, 58660), (1624, 50280), (1676, 48720), (1680, 48604), (1740, 46928), (1856, 43995), (2030, 40224), (2095, 38976), (2240, 36453), (2320, 35196), (2436, 33520), (2514, 32480), (2784, 29330), (2933, 27840), (3045, 26816), (3248, 25140), (3352, 24360), (3360, 24302), (3480, 23464), (4060, 20112), (4190, 19488), (4640, 17598), (4872, 16760), (5028, 16240), (5568, 14665), (5866, 13920), (6090, 13408), (6285, 12992), (6496, 12570), (6704, 12180), (6720, 12151), (6960, 11732), (8120, 10056), (8380, 9744), (8799, 9280)]