20850480

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{197}}^1$

素因数の和:233

約数の個数: 240

約数和(自身を含む): 83967840

約数和(自身を除く): 63117360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 197, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 394, 420, 432, 441, 490, 504, 540, 560, 588, 591, 630, 720, 735, 756, 784, 788, 840, 882, 945, 980, 985, 1008, 1080, 1176, 1182, 1260, 1323, 1379, 1470, 1512, 1576, 1680, 1764, 1773, 1890, 1960, 1970, 2160, 2205, 2352, 2364, 2520, 2646, 2758, 2940, 2955, 3024, 3152, 3528, 3546, 3780, 3920, 3940, 4137, 4410, 4728, 5040, 5292, 5319, 5516, 5880, 5910, 6615, 6895, 7056, 7092, 7560, 7880, 8274, 8820, 8865, 9456, 9653, 10584, 10638, 11032, 11760, 11820, 12411, 13230, 13790, 14184, 15120, 15760, 16548, 17640, 17730, 19306, 20685, 21168, 21276, 22064, 23640, 24822, 26460, 26595, 27580, 28368, 28959, 33096, 35280, 35460, 37233, 38612, 41370, 42552, 47280, 48265, 49644, 52920, 53190, 55160, 57918, 62055, 66192, 70920, 74466, 77224, 82740, 85104, 86877, 96530, 99288, 105840, 106380, 110320, 115836, 124110, 141840, 144795, 148932, 154448, 165480, 173754, 186165, 193060, 198576, 212760, 231672, 248220, 260631, 289590, 297864, 330960, 347508, 372330, 386120, 425520, 434385, 463344, 496440, 521262, 579180, 595728, 695016, 744660, 772240, 868770, 992880, 1042524, 1158360, 1303155, 1390032, 1489320, 1737540, 2085048, 2316720, 2606310, 2978640, 3475080, 4170096, 5212620, 6950160, 10425240, 20850480]

約数ペア:

[(1, 20850480), (2, 10425240), (3, 6950160), (4, 5212620), (5, 4170096), (6, 3475080), (7, 2978640), (8, 2606310), (9, 2316720), (10, 2085048), (12, 1737540), (14, 1489320), (15, 1390032), (16, 1303155), (18, 1158360), (20, 1042524), (21, 992880), (24, 868770), (27, 772240), (28, 744660), (30, 695016), (35, 595728), (36, 579180), (40, 521262), (42, 496440), (45, 463344), (48, 434385), (49, 425520), (54, 386120), (56, 372330), (60, 347508), (63, 330960), (70, 297864), (72, 289590), (80, 260631), (84, 248220), (90, 231672), (98, 212760), (105, 198576), (108, 193060), (112, 186165), (120, 173754), (126, 165480), (135, 154448), (140, 148932), (144, 144795), (147, 141840), (168, 124110), (180, 115836), (189, 110320), (196, 106380), (197, 105840), (210, 99288), (216, 96530), (240, 86877), (245, 85104), (252, 82740), (270, 77224), (280, 74466), (294, 70920), (315, 66192), (336, 62055), (360, 57918), (378, 55160), (392, 53190), (394, 52920), (420, 49644), (432, 48265), (441, 47280), (490, 42552), (504, 41370), (540, 38612), (560, 37233), (588, 35460), (591, 35280), (630, 33096), (720, 28959), (735, 28368), (756, 27580), (784, 26595), (788, 26460), (840, 24822), (882, 23640), (945, 22064), (980, 21276), (985, 21168), (1008, 20685), (1080, 19306), (1176, 17730), (1182, 17640), (1260, 16548), (1323, 15760), (1379, 15120), (1470, 14184), (1512, 13790), (1576, 13230), (1680, 12411), (1764, 11820), (1773, 11760), (1890, 11032), (1960, 10638), (1970, 10584), (2160, 9653), (2205, 9456), (2352, 8865), (2364, 8820), (2520, 8274), (2646, 7880), (2758, 7560), (2940, 7092), (2955, 7056), (3024, 6895), (3152, 6615), (3528, 5910), (3546, 5880), (3780, 5516), (3920, 5319), (3940, 5292), (4137, 5040), (4410, 4728)]