208788848

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:294

約数の個数: 80

約数和(自身を含む): 438400512

約数和(自身を除く): 229611664

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 71, 92, 122, 131, 142, 184, 244, 262, 284, 368, 488, 524, 568, 976, 1048, 1136, 1403, 1633, 2096, 2806, 3013, 3266, 4331, 5612, 6026, 6532, 7991, 8662, 9301, 11224, 12052, 13064, 15982, 17324, 18602, 22448, 24104, 26128, 31964, 34648, 37204, 48208, 63928, 69296, 74408, 99613, 127856, 148816, 183793, 199226, 213923, 367586, 398452, 427846, 567361, 735172, 796904, 855692, 1134722, 1470344, 1593808, 1711384, 2269444, 2940688, 3422768, 4538888, 9077776, 13049303, 26098606, 52197212, 104394424, 208788848]

約数ペア:

[(1, 208788848), (2, 104394424), (4, 52197212), (8, 26098606), (16, 13049303), (23, 9077776), (46, 4538888), (61, 3422768), (71, 2940688), (92, 2269444), (122, 1711384), (131, 1593808), (142, 1470344), (184, 1134722), (244, 855692), (262, 796904), (284, 735172), (368, 567361), (488, 427846), (524, 398452), (568, 367586), (976, 213923), (1048, 199226), (1136, 183793), (1403, 148816), (1633, 127856), (2096, 99613), (2806, 74408), (3013, 69296), (3266, 63928), (4331, 48208), (5612, 37204), (6026, 34648), (6532, 31964), (7991, 26128), (8662, 24104), (9301, 22448), (11224, 18602), (12052, 17324), (13064, 15982)]