81885760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:612

約数の個数: 112

約数和(自身を含む): 218066112

約数和(自身を除く): 136180352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 64, 80, 86, 88, 110, 160, 172, 176, 215, 220, 320, 344, 352, 430, 440, 473, 541, 688, 704, 860, 880, 946, 1082, 1376, 1720, 1760, 1892, 2164, 2365, 2705, 2752, 3440, 3520, 3784, 4328, 4730, 5410, 5951, 6880, 7568, 8656, 9460, 10820, 11902, 13760, 15136, 17312, 18920, 21640, 23263, 23804, 29755, 30272, 34624, 37840, 43280, 46526, 47608, 59510, 75680, 86560, 93052, 95216, 116315, 119020, 151360, 173120, 186104, 190432, 232630, 238040, 255893, 372208, 380864, 465260, 476080, 511786, 744416, 930520, 952160, 1023572, 1279465, 1488832, 1861040, 1904320, 2047144, 2558930, 3722080, 4094288, 5117860, 7444160, 8188576, 10235720, 16377152, 20471440, 40942880, 81885760]

約数ペア:

[(1, 81885760), (2, 40942880), (4, 20471440), (5, 16377152), (8, 10235720), (10, 8188576), (11, 7444160), (16, 5117860), (20, 4094288), (22, 3722080), (32, 2558930), (40, 2047144), (43, 1904320), (44, 1861040), (55, 1488832), (64, 1279465), (80, 1023572), (86, 952160), (88, 930520), (110, 744416), (160, 511786), (172, 476080), (176, 465260), (215, 380864), (220, 372208), (320, 255893), (344, 238040), (352, 232630), (430, 190432), (440, 186104), (473, 173120), (541, 151360), (688, 119020), (704, 116315), (860, 95216), (880, 93052), (946, 86560), (1082, 75680), (1376, 59510), (1720, 47608), (1760, 46526), (1892, 43280), (2164, 37840), (2365, 34624), (2705, 30272), (2752, 29755), (3440, 23804), (3520, 23263), (3784, 21640), (4328, 18920), (4730, 17312), (5410, 15136), (5951, 13760), (6880, 11902), (7568, 10820), (8656, 9460)]