51171680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 144272016

約数和(自身を除く): 93100336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 107, 112, 122, 140, 160, 196, 214, 224, 244, 245, 280, 305, 392, 427, 428, 488, 490, 535, 560, 610, 749, 784, 854, 856, 976, 980, 1070, 1120, 1220, 1498, 1568, 1708, 1712, 1952, 1960, 2135, 2140, 2440, 2989, 2996, 3416, 3424, 3745, 3920, 4270, 4280, 4880, 5243, 5978, 5992, 6527, 6832, 7490, 7840, 8540, 8560, 9760, 10486, 11956, 11984, 13054, 13664, 14945, 14980, 17080, 17120, 20972, 23912, 23968, 26108, 26215, 29890, 29960, 32635, 34160, 41944, 45689, 47824, 52216, 52430, 59780, 59920, 65270, 68320, 83888, 91378, 95648, 104432, 104860, 119560, 119840, 130540, 167776, 182756, 208864, 209720, 228445, 239120, 261080, 319823, 365512, 419440, 456890, 478240, 522160, 639646, 731024, 838880, 913780, 1044320, 1279292, 1462048, 1599115, 1827560, 2558584, 3198230, 3655120, 5117168, 6396460, 7310240, 10234336, 12792920, 25585840, 51171680]

約数ペア:

[(1, 51171680), (2, 25585840), (4, 12792920), (5, 10234336), (7, 7310240), (8, 6396460), (10, 5117168), (14, 3655120), (16, 3198230), (20, 2558584), (28, 1827560), (32, 1599115), (35, 1462048), (40, 1279292), (49, 1044320), (56, 913780), (61, 838880), (70, 731024), (80, 639646), (98, 522160), (107, 478240), (112, 456890), (122, 419440), (140, 365512), (160, 319823), (196, 261080), (214, 239120), (224, 228445), (244, 209720), (245, 208864), (280, 182756), (305, 167776), (392, 130540), (427, 119840), (428, 119560), (488, 104860), (490, 104432), (535, 95648), (560, 91378), (610, 83888), (749, 68320), (784, 65270), (854, 59920), (856, 59780), (976, 52430), (980, 52216), (1070, 47824), (1120, 45689), (1220, 41944), (1498, 34160), (1568, 32635), (1708, 29960), (1712, 29890), (1952, 26215), (1960, 26108), (2135, 23968), (2140, 23912), (2440, 20972), (2989, 17120), (2996, 17080), (3416, 14980), (3424, 14945), (3745, 13664), (3920, 13054), (4270, 11984), (4280, 11956), (4880, 10486), (5243, 9760), (5978, 8560), (5992, 8540), (6527, 7840), (6832, 7490)]