78816892

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 176964480

約数和(自身を除く): 98147588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 139, 154, 196, 263, 278, 308, 526, 539, 556, 973, 1052, 1078, 1529, 1841, 1946, 2156, 2893, 3058, 3682, 3892, 5786, 6116, 6811, 7364, 10703, 11572, 12887, 13622, 20251, 21406, 25774, 27244, 36557, 40502, 42812, 51548, 73114, 74921, 81004, 141757, 146228, 149842, 255899, 283514, 299684, 402127, 511798, 567028, 804254, 1023596, 1608508, 1791293, 2814889, 3582586, 5629778, 7165172, 11259556, 19704223, 39408446, 78816892]

約数ペア:

[(1, 78816892), (2, 39408446), (4, 19704223), (7, 11259556), (11, 7165172), (14, 5629778), (22, 3582586), (28, 2814889), (44, 1791293), (49, 1608508), (77, 1023596), (98, 804254), (139, 567028), (154, 511798), (196, 402127), (263, 299684), (278, 283514), (308, 255899), (526, 149842), (539, 146228), (556, 141757), (973, 81004), (1052, 74921), (1078, 73114), (1529, 51548), (1841, 42812), (1946, 40502), (2156, 36557), (2893, 27244), (3058, 25774), (3682, 21406), (3892, 20251), (5786, 13622), (6116, 12887), (6811, 11572), (7364, 10703)]