989880892

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{247223}}^1$

素因数の和:247258

約数の個数: 48

約数和(自身を含む): 2325883392

約数和(自身を除く): 1336002500

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 247223, 494446, 988892, 1730561, 2719453, 3213899, 3461122, 5438906, 6427798, 6922244, 10877812, 12855596, 19036171, 22497293, 35352889, 38072342, 44994586, 70705778, 76144684, 89989172, 141411556, 247470223, 494940446, 989880892]

約数ペア:

[(1, 989880892), (2, 494940446), (4, 247470223), (7, 141411556), (11, 89989172), (13, 76144684), (14, 70705778), (22, 44994586), (26, 38072342), (28, 35352889), (44, 22497293), (52, 19036171), (77, 12855596), (91, 10877812), (143, 6922244), (154, 6427798), (182, 5438906), (286, 3461122), (308, 3213899), (364, 2719453), (572, 1730561), (1001, 988892), (2002, 494446), (4004, 247223)]