20518080

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 224

約数和(自身を含む): 74615040

約数和(自身を除く): 54096960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 32, 33, 40, 44, 48, 55, 58, 60, 64, 66, 67, 80, 87, 88, 96, 110, 116, 120, 132, 134, 145, 160, 165, 174, 176, 192, 201, 220, 232, 240, 264, 268, 290, 319, 320, 330, 335, 348, 352, 402, 435, 440, 464, 480, 528, 536, 580, 638, 660, 670, 696, 704, 737, 804, 870, 880, 928, 957, 960, 1005, 1056, 1072, 1160, 1276, 1320, 1340, 1392, 1474, 1595, 1608, 1740, 1760, 1856, 1914, 1943, 2010, 2112, 2144, 2211, 2320, 2552, 2640, 2680, 2784, 2948, 3190, 3216, 3480, 3520, 3685, 3828, 3886, 4020, 4288, 4422, 4640, 4785, 5104, 5280, 5360, 5568, 5829, 5896, 6380, 6432, 6960, 7370, 7656, 7772, 8040, 8844, 9280, 9570, 9715, 10208, 10560, 10720, 11055, 11658, 11792, 12760, 12864, 13920, 14740, 15312, 15544, 16080, 17688, 19140, 19430, 20416, 21373, 21440, 22110, 23316, 23584, 25520, 27840, 29145, 29480, 30624, 31088, 32160, 35376, 38280, 38860, 42746, 44220, 46632, 47168, 51040, 58290, 58960, 61248, 62176, 64119, 64320, 70752, 76560, 77720, 85492, 88440, 93264, 102080, 106865, 116580, 117920, 124352, 128238, 141504, 153120, 155440, 170984, 176880, 186528, 213730, 233160, 235840, 256476, 306240, 310880, 320595, 341968, 353760, 373056, 427460, 466320, 512952, 621760, 641190, 683936, 707520, 854920, 932640, 1025904, 1282380, 1367872, 1709840, 1865280, 2051808, 2564760, 3419680, 4103616, 5129520, 6839360, 10259040, 20518080]

約数ペア:

[(1, 20518080), (2, 10259040), (3, 6839360), (4, 5129520), (5, 4103616), (6, 3419680), (8, 2564760), (10, 2051808), (11, 1865280), (12, 1709840), (15, 1367872), (16, 1282380), (20, 1025904), (22, 932640), (24, 854920), (29, 707520), (30, 683936), (32, 641190), (33, 621760), (40, 512952), (44, 466320), (48, 427460), (55, 373056), (58, 353760), (60, 341968), (64, 320595), (66, 310880), (67, 306240), (80, 256476), (87, 235840), (88, 233160), (96, 213730), (110, 186528), (116, 176880), (120, 170984), (132, 155440), (134, 153120), (145, 141504), (160, 128238), (165, 124352), (174, 117920), (176, 116580), (192, 106865), (201, 102080), (220, 93264), (232, 88440), (240, 85492), (264, 77720), (268, 76560), (290, 70752), (319, 64320), (320, 64119), (330, 62176), (335, 61248), (348, 58960), (352, 58290), (402, 51040), (435, 47168), (440, 46632), (464, 44220), (480, 42746), (528, 38860), (536, 38280), (580, 35376), (638, 32160), (660, 31088), (670, 30624), (696, 29480), (704, 29145), (737, 27840), (804, 25520), (870, 23584), (880, 23316), (928, 22110), (957, 21440), (960, 21373), (1005, 20416), (1056, 19430), (1072, 19140), (1160, 17688), (1276, 16080), (1320, 15544), (1340, 15312), (1392, 14740), (1474, 13920), (1595, 12864), (1608, 12760), (1740, 11792), (1760, 11658), (1856, 11055), (1914, 10720), (1943, 10560), (2010, 10208), (2112, 9715), (2144, 9570), (2211, 9280), (2320, 8844), (2552, 8040), (2640, 7772), (2680, 7656), (2784, 7370), (2948, 6960), (3190, 6432), (3216, 6380), (3480, 5896), (3520, 5829), (3685, 5568), (3828, 5360), (3886, 5280), (4020, 5104), (4288, 4785), (4422, 4640)]