81491312

素因数分解:

$2^4\times 7^3\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:539

約数の個数: 80

約数和(自身を含む): 190464000

約数和(自身を除く): 108972688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 196, 217, 248, 343, 392, 434, 479, 496, 686, 784, 868, 958, 1372, 1519, 1736, 1916, 2744, 3038, 3353, 3472, 3832, 5488, 6076, 6706, 7664, 10633, 12152, 13412, 14849, 21266, 23471, 24304, 26824, 29698, 42532, 46942, 53648, 59396, 85064, 93884, 103943, 118792, 164297, 170128, 187768, 207886, 237584, 328594, 375536, 415772, 657188, 727601, 831544, 1314376, 1455202, 1663088, 2628752, 2910404, 5093207, 5820808, 10186414, 11641616, 20372828, 40745656, 81491312]

約数ペア:

[(1, 81491312), (2, 40745656), (4, 20372828), (7, 11641616), (8, 10186414), (14, 5820808), (16, 5093207), (28, 2910404), (31, 2628752), (49, 1663088), (56, 1455202), (62, 1314376), (98, 831544), (112, 727601), (124, 657188), (196, 415772), (217, 375536), (248, 328594), (343, 237584), (392, 207886), (434, 187768), (479, 170128), (496, 164297), (686, 118792), (784, 103943), (868, 93884), (958, 85064), (1372, 59396), (1519, 53648), (1736, 46942), (1916, 42532), (2744, 29698), (3038, 26824), (3353, 24304), (3472, 23471), (3832, 21266), (5488, 14849), (6076, 13412), (6706, 12152), (7664, 10633)]