86721880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 234823680

約数和(自身を除く): 148101800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 97, 103, 124, 140, 155, 194, 206, 217, 248, 280, 310, 388, 412, 434, 485, 515, 620, 679, 721, 776, 824, 868, 970, 1030, 1085, 1240, 1358, 1442, 1736, 1940, 2060, 2170, 2716, 2884, 3007, 3193, 3395, 3605, 3880, 4120, 4340, 5432, 5768, 6014, 6386, 6790, 7210, 8680, 9991, 12028, 12772, 13580, 14420, 15035, 15965, 19982, 21049, 22351, 24056, 25544, 27160, 28840, 30070, 31930, 39964, 42098, 44702, 49955, 60140, 63860, 69937, 79928, 84196, 89404, 99910, 105245, 111755, 120280, 127720, 139874, 168392, 178808, 199820, 210490, 223510, 279748, 309721, 349685, 399640, 420980, 447020, 559496, 619442, 699370, 841960, 894040, 1238884, 1398740, 1548605, 2168047, 2477768, 2797480, 3097210, 4336094, 6194420, 8672188, 10840235, 12388840, 17344376, 21680470, 43360940, 86721880]

約数ペア:

[(1, 86721880), (2, 43360940), (4, 21680470), (5, 17344376), (7, 12388840), (8, 10840235), (10, 8672188), (14, 6194420), (20, 4336094), (28, 3097210), (31, 2797480), (35, 2477768), (40, 2168047), (56, 1548605), (62, 1398740), (70, 1238884), (97, 894040), (103, 841960), (124, 699370), (140, 619442), (155, 559496), (194, 447020), (206, 420980), (217, 399640), (248, 349685), (280, 309721), (310, 279748), (388, 223510), (412, 210490), (434, 199820), (485, 178808), (515, 168392), (620, 139874), (679, 127720), (721, 120280), (776, 111755), (824, 105245), (868, 99910), (970, 89404), (1030, 84196), (1085, 79928), (1240, 69937), (1358, 63860), (1442, 60140), (1736, 49955), (1940, 44702), (2060, 42098), (2170, 39964), (2716, 31930), (2884, 30070), (3007, 28840), (3193, 27160), (3395, 25544), (3605, 24056), (3880, 22351), (4120, 21049), (4340, 19982), (5432, 15965), (5768, 15035), (6014, 14420), (6386, 13580), (6790, 12772), (7210, 12028), (8680, 9991)]