20925240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 128

約数和(自身を含む): 74304000

約数和(自身を除く): 53378760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 812, 840, 859, 870, 1015, 1160, 1218, 1624, 1718, 1740, 2030, 2436, 2577, 3045, 3436, 3480, 4060, 4295, 4872, 5154, 6013, 6090, 6872, 8120, 8590, 10308, 12026, 12180, 12885, 17180, 18039, 20616, 24052, 24360, 24911, 25770, 30065, 34360, 36078, 48104, 49822, 51540, 60130, 72156, 74733, 90195, 99644, 103080, 120260, 124555, 144312, 149466, 174377, 180390, 199288, 240520, 249110, 298932, 348754, 360780, 373665, 498220, 523131, 597864, 697508, 721560, 747330, 871885, 996440, 1046262, 1395016, 1494660, 1743770, 2092524, 2615655, 2989320, 3487540, 4185048, 5231310, 6975080, 10462620, 20925240]

約数ペア:

[(1, 20925240), (2, 10462620), (3, 6975080), (4, 5231310), (5, 4185048), (6, 3487540), (7, 2989320), (8, 2615655), (10, 2092524), (12, 1743770), (14, 1494660), (15, 1395016), (20, 1046262), (21, 996440), (24, 871885), (28, 747330), (29, 721560), (30, 697508), (35, 597864), (40, 523131), (42, 498220), (56, 373665), (58, 360780), (60, 348754), (70, 298932), (84, 249110), (87, 240520), (105, 199288), (116, 180390), (120, 174377), (140, 149466), (145, 144312), (168, 124555), (174, 120260), (203, 103080), (210, 99644), (232, 90195), (280, 74733), (290, 72156), (348, 60130), (406, 51540), (420, 49822), (435, 48104), (580, 36078), (609, 34360), (696, 30065), (812, 25770), (840, 24911), (859, 24360), (870, 24052), (1015, 20616), (1160, 18039), (1218, 17180), (1624, 12885), (1718, 12180), (1740, 12026), (2030, 10308), (2436, 8590), (2577, 8120), (3045, 6872), (3436, 6090), (3480, 6013), (4060, 5154), (4295, 4872)]