21782880

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2161}}^1$

素因数の和:2189

約数の個数: 144

約数和(自身を含む): 84992544

約数和(自身を除く): 63209664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2161, 2520, 3360, 4322, 5040, 6483, 8644, 10080, 10805, 12966, 15127, 17288, 19449, 21610, 25932, 30254, 32415, 34576, 38898, 43220, 45381, 51864, 60508, 64830, 69152, 75635, 77796, 86440, 90762, 97245, 103728, 121016, 129660, 136143, 151270, 155592, 172880, 181524, 194490, 207456, 226905, 242032, 259320, 272286, 302540, 311184, 345760, 363048, 388980, 453810, 484064, 518640, 544572, 605080, 622368, 680715, 726096, 777960, 907620, 1037280, 1089144, 1210160, 1361430, 1452192, 1555920, 1815240, 2178288, 2420320, 2722860, 3111840, 3630480, 4356576, 5445720, 7260960, 10891440, 21782880]

約数ペア:

[(1, 21782880), (2, 10891440), (3, 7260960), (4, 5445720), (5, 4356576), (6, 3630480), (7, 3111840), (8, 2722860), (9, 2420320), (10, 2178288), (12, 1815240), (14, 1555920), (15, 1452192), (16, 1361430), (18, 1210160), (20, 1089144), (21, 1037280), (24, 907620), (28, 777960), (30, 726096), (32, 680715), (35, 622368), (36, 605080), (40, 544572), (42, 518640), (45, 484064), (48, 453810), (56, 388980), (60, 363048), (63, 345760), (70, 311184), (72, 302540), (80, 272286), (84, 259320), (90, 242032), (96, 226905), (105, 207456), (112, 194490), (120, 181524), (126, 172880), (140, 155592), (144, 151270), (160, 136143), (168, 129660), (180, 121016), (210, 103728), (224, 97245), (240, 90762), (252, 86440), (280, 77796), (288, 75635), (315, 69152), (336, 64830), (360, 60508), (420, 51864), (480, 45381), (504, 43220), (560, 38898), (630, 34576), (672, 32415), (720, 30254), (840, 25932), (1008, 21610), (1120, 19449), (1260, 17288), (1440, 15127), (1680, 12966), (2016, 10805), (2161, 10080), (2520, 8644), (3360, 6483), (4322, 5040)]