21052696560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{63611}}^1$

素因数の和:63831

約数の個数: 160

約数和(自身を含む): 74966487552

約数和(自身を除く): 53913790992

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 197, 210, 240, 280, 336, 394, 420, 560, 591, 788, 840, 985, 1182, 1379, 1576, 1680, 1970, 2364, 2758, 2955, 3152, 3940, 4137, 4728, 5516, 5910, 6895, 7880, 8274, 9456, 11032, 11820, 13790, 15760, 16548, 20685, 22064, 23640, 27580, 33096, 41370, 47280, 55160, 63611, 66192, 82740, 110320, 127222, 165480, 190833, 254444, 318055, 330960, 381666, 445277, 508888, 636110, 763332, 890554, 954165, 1017776, 1272220, 1335831, 1526664, 1781108, 1908330, 2226385, 2544440, 2671662, 3053328, 3562216, 3816660, 4452770, 5088880, 5343324, 6679155, 7124432, 7633320, 8905540, 10686648, 12531367, 13358310, 15266640, 17811080, 21373296, 25062734, 26716620, 35622160, 37594101, 50125468, 53433240, 62656835, 75188202, 87719569, 100250936, 106866480, 125313670, 150376404, 175439138, 187970505, 200501872, 250627340, 263158707, 300752808, 350878276, 375941010, 438597845, 501254680, 526317414, 601505616, 701756552, 751882020, 877195690, 1002509360, 1052634828, 1315793535, 1403513104, 1503764040, 1754391380, 2105269656, 2631587070, 3007528080, 3508782760, 4210539312, 5263174140, 7017565520, 10526348280, 21052696560]

約数ペア:

[(1, 21052696560), (2, 10526348280), (3, 7017565520), (4, 5263174140), (5, 4210539312), (6, 3508782760), (7, 3007528080), (8, 2631587070), (10, 2105269656), (12, 1754391380), (14, 1503764040), (15, 1403513104), (16, 1315793535), (20, 1052634828), (21, 1002509360), (24, 877195690), (28, 751882020), (30, 701756552), (35, 601505616), (40, 526317414), (42, 501254680), (48, 438597845), (56, 375941010), (60, 350878276), (70, 300752808), (80, 263158707), (84, 250627340), (105, 200501872), (112, 187970505), (120, 175439138), (140, 150376404), (168, 125313670), (197, 106866480), (210, 100250936), (240, 87719569), (280, 75188202), (336, 62656835), (394, 53433240), (420, 50125468), (560, 37594101), (591, 35622160), (788, 26716620), (840, 25062734), (985, 21373296), (1182, 17811080), (1379, 15266640), (1576, 13358310), (1680, 12531367), (1970, 10686648), (2364, 8905540), (2758, 7633320), (2955, 7124432), (3152, 6679155), (3940, 5343324), (4137, 5088880), (4728, 4452770), (5516, 3816660), (5910, 3562216), (6895, 3053328), (7880, 2671662), (8274, 2544440), (9456, 2226385), (11032, 1908330), (11820, 1781108), (13790, 1526664), (15760, 1335831), (16548, 1272220), (20685, 1017776), (22064, 954165), (23640, 890554), (27580, 763332), (33096, 636110), (41370, 508888), (47280, 445277), (55160, 381666), (63611, 330960), (66192, 318055), (82740, 254444), (110320, 190833), (127222, 165480)]