31508958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 71350272

約数和(自身を除く): 39841314

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 83, 93, 157, 166, 186, 249, 314, 403, 471, 498, 806, 942, 1079, 1209, 2041, 2158, 2418, 2573, 3237, 4082, 4867, 5146, 6123, 6474, 7719, 9734, 12246, 13031, 14601, 15438, 26062, 29202, 33449, 39093, 63271, 66898, 78186, 100347, 126542, 169403, 189813, 200694, 338806, 379626, 403961, 508209, 807922, 1016418, 1211883, 2423766, 5251493, 10502986, 15754479, 31508958]

約数ペア:

[(1, 31508958), (2, 15754479), (3, 10502986), (6, 5251493), (13, 2423766), (26, 1211883), (31, 1016418), (39, 807922), (62, 508209), (78, 403961), (83, 379626), (93, 338806), (157, 200694), (166, 189813), (186, 169403), (249, 126542), (314, 100347), (403, 78186), (471, 66898), (498, 63271), (806, 39093), (942, 33449), (1079, 29202), (1209, 26062), (2041, 15438), (2158, 14601), (2418, 13031), (2573, 12246), (3237, 9734), (4082, 7719), (4867, 6474), (5146, 6123)]