77031920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:527

約数の個数: 120

約数和(自身を含む): 213651504

約数和(自身を除く): 136619584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 457, 490, 560, 602, 688, 784, 860, 914, 980, 1204, 1505, 1720, 1828, 1960, 2107, 2285, 2408, 3010, 3199, 3440, 3656, 3920, 4214, 4570, 4816, 6020, 6398, 7312, 8428, 9140, 10535, 12040, 12796, 15995, 16856, 18280, 19651, 21070, 22393, 24080, 25592, 31990, 33712, 36560, 39302, 42140, 44786, 51184, 63980, 78604, 84280, 89572, 98255, 111965, 127960, 137557, 157208, 168560, 179144, 196510, 223930, 255920, 275114, 314416, 358288, 393020, 447860, 550228, 687785, 786040, 895720, 962899, 1100456, 1375570, 1572080, 1791440, 1925798, 2200912, 2751140, 3851596, 4814495, 5502280, 7703192, 9628990, 11004560, 15406384, 19257980, 38515960, 77031920]

約数ペア:

[(1, 77031920), (2, 38515960), (4, 19257980), (5, 15406384), (7, 11004560), (8, 9628990), (10, 7703192), (14, 5502280), (16, 4814495), (20, 3851596), (28, 2751140), (35, 2200912), (40, 1925798), (43, 1791440), (49, 1572080), (56, 1375570), (70, 1100456), (80, 962899), (86, 895720), (98, 786040), (112, 687785), (140, 550228), (172, 447860), (196, 393020), (215, 358288), (245, 314416), (280, 275114), (301, 255920), (344, 223930), (392, 196510), (430, 179144), (457, 168560), (490, 157208), (560, 137557), (602, 127960), (688, 111965), (784, 98255), (860, 89572), (914, 84280), (980, 78604), (1204, 63980), (1505, 51184), (1720, 44786), (1828, 42140), (1960, 39302), (2107, 36560), (2285, 33712), (2408, 31990), (3010, 25592), (3199, 24080), (3440, 22393), (3656, 21070), (3920, 19651), (4214, 18280), (4570, 16856), (4816, 15995), (6020, 12796), (6398, 12040), (7312, 10535), (8428, 9140)]