28660688

素因数分解:

$2^4\times 7^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:424

約数の個数: 60

約数和(自身を含む): 65308320

約数和(自身を除く): 36647632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 139, 196, 263, 278, 392, 526, 556, 784, 973, 1052, 1112, 1841, 1946, 2104, 2224, 3682, 3892, 4208, 6811, 7364, 7784, 12887, 13622, 14728, 15568, 25774, 27244, 29456, 36557, 51548, 54488, 73114, 103096, 108976, 146228, 206192, 255899, 292456, 511798, 584912, 1023596, 1791293, 2047192, 3582586, 4094384, 7165172, 14330344, 28660688]

約数ペア:

[(1, 28660688), (2, 14330344), (4, 7165172), (7, 4094384), (8, 3582586), (14, 2047192), (16, 1791293), (28, 1023596), (49, 584912), (56, 511798), (98, 292456), (112, 255899), (139, 206192), (196, 146228), (263, 108976), (278, 103096), (392, 73114), (526, 54488), (556, 51548), (784, 36557), (973, 29456), (1052, 27244), (1112, 25774), (1841, 15568), (1946, 14728), (2104, 13622), (2224, 12887), (3682, 7784), (3892, 7364), (4208, 6811)]