20699008

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 45912240

約数和(自身を除く): 25213232

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 122, 128, 176, 241, 244, 352, 482, 488, 671, 704, 964, 976, 1342, 1408, 1928, 1952, 2651, 2684, 3856, 3904, 5302, 5368, 7712, 7808, 10604, 10736, 14701, 15424, 21208, 21472, 29402, 30848, 42416, 42944, 58804, 84832, 85888, 117608, 161711, 169664, 235216, 323422, 339328, 470432, 646844, 940864, 1293688, 1881728, 2587376, 5174752, 10349504, 20699008]

約数ペア:

[(1, 20699008), (2, 10349504), (4, 5174752), (8, 2587376), (11, 1881728), (16, 1293688), (22, 940864), (32, 646844), (44, 470432), (61, 339328), (64, 323422), (88, 235216), (122, 169664), (128, 161711), (176, 117608), (241, 85888), (244, 84832), (352, 58804), (482, 42944), (488, 42416), (671, 30848), (704, 29402), (964, 21472), (976, 21208), (1342, 15424), (1408, 14701), (1928, 10736), (1952, 10604), (2651, 7808), (2684, 7712), (3856, 5368), (3904, 5302)]