20168808

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{317}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 55408320

約数和(自身を除く): 35239512

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 241, 264, 317, 482, 634, 723, 951, 964, 1268, 1446, 1902, 1928, 2536, 2651, 2892, 3487, 3804, 5302, 5784, 6974, 7608, 7953, 10461, 10604, 13948, 15906, 20922, 21208, 27896, 31812, 41844, 63624, 76397, 83688, 152794, 229191, 305588, 458382, 611176, 840367, 916764, 1680734, 1833528, 2521101, 3361468, 5042202, 6722936, 10084404, 20168808]

約数ペア:

[(1, 20168808), (2, 10084404), (3, 6722936), (4, 5042202), (6, 3361468), (8, 2521101), (11, 1833528), (12, 1680734), (22, 916764), (24, 840367), (33, 611176), (44, 458382), (66, 305588), (88, 229191), (132, 152794), (241, 83688), (264, 76397), (317, 63624), (482, 41844), (634, 31812), (723, 27896), (951, 21208), (964, 20922), (1268, 15906), (1446, 13948), (1902, 10604), (1928, 10461), (2536, 7953), (2651, 7608), (2892, 6974), (3487, 5784), (3804, 5302)]