51387120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:647

約数の個数: 120

約数和(自身を含む): 174096000

約数和(自身を除く): 122708880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 149, 180, 240, 298, 360, 447, 479, 596, 720, 745, 894, 958, 1192, 1341, 1437, 1490, 1788, 1916, 2235, 2384, 2395, 2682, 2874, 2980, 3576, 3832, 4311, 4470, 4790, 5364, 5748, 5960, 6705, 7152, 7185, 7664, 8622, 8940, 9580, 10728, 11496, 11920, 13410, 14370, 17244, 17880, 19160, 21456, 21555, 22992, 26820, 28740, 34488, 35760, 38320, 43110, 53640, 57480, 68976, 71371, 86220, 107280, 114960, 142742, 172440, 214113, 285484, 344880, 356855, 428226, 570968, 642339, 713710, 856452, 1070565, 1141936, 1284678, 1427420, 1712904, 2141130, 2569356, 2854840, 3211695, 3425808, 4282260, 5138712, 5709680, 6423390, 8564520, 10277424, 12846780, 17129040, 25693560, 51387120]

約数ペア:

[(1, 51387120), (2, 25693560), (3, 17129040), (4, 12846780), (5, 10277424), (6, 8564520), (8, 6423390), (9, 5709680), (10, 5138712), (12, 4282260), (15, 3425808), (16, 3211695), (18, 2854840), (20, 2569356), (24, 2141130), (30, 1712904), (36, 1427420), (40, 1284678), (45, 1141936), (48, 1070565), (60, 856452), (72, 713710), (80, 642339), (90, 570968), (120, 428226), (144, 356855), (149, 344880), (180, 285484), (240, 214113), (298, 172440), (360, 142742), (447, 114960), (479, 107280), (596, 86220), (720, 71371), (745, 68976), (894, 57480), (958, 53640), (1192, 43110), (1341, 38320), (1437, 35760), (1490, 34488), (1788, 28740), (1916, 26820), (2235, 22992), (2384, 21555), (2395, 21456), (2682, 19160), (2874, 17880), (2980, 17244), (3576, 14370), (3832, 13410), (4311, 11920), (4470, 11496), (4790, 10728), (5364, 9580), (5748, 8940), (5960, 8622), (6705, 7664), (7152, 7185)]