20584816

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 48711168

約数和(自身を除く): 28126352

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 61, 92, 112, 122, 131, 161, 184, 244, 262, 322, 368, 427, 488, 524, 644, 854, 917, 976, 1048, 1288, 1403, 1708, 1834, 2096, 2576, 2806, 3013, 3416, 3668, 5612, 6026, 6832, 7336, 7991, 9821, 11224, 12052, 14672, 15982, 19642, 21091, 22448, 24104, 31964, 39284, 42182, 48208, 55937, 63928, 78568, 84364, 111874, 127856, 157136, 168728, 183793, 223748, 337456, 367586, 447496, 735172, 894992, 1286551, 1470344, 2573102, 2940688, 5146204, 10292408, 20584816]

約数ペア:

[(1, 20584816), (2, 10292408), (4, 5146204), (7, 2940688), (8, 2573102), (14, 1470344), (16, 1286551), (23, 894992), (28, 735172), (46, 447496), (56, 367586), (61, 337456), (92, 223748), (112, 183793), (122, 168728), (131, 157136), (161, 127856), (184, 111874), (244, 84364), (262, 78568), (322, 63928), (368, 55937), (427, 48208), (488, 42182), (524, 39284), (644, 31964), (854, 24104), (917, 22448), (976, 21091), (1048, 19642), (1288, 15982), (1403, 14672), (1708, 12052), (1834, 11224), (2096, 9821), (2576, 7991), (2806, 7336), (3013, 6832), (3416, 6026), (3668, 5612)]