138972440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151057}}^1$

素因数の和:151091

約数の個数: 32

約数和(自身を含む): 326285280

約数和(自身を除く): 187312840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 151057, 302114, 604228, 755285, 1208456, 1510570, 3021140, 3474311, 6042280, 6948622, 13897244, 17371555, 27794488, 34743110, 69486220, 138972440]

約数ペア:

[(1, 138972440), (2, 69486220), (4, 34743110), (5, 27794488), (8, 17371555), (10, 13897244), (20, 6948622), (23, 6042280), (40, 3474311), (46, 3021140), (92, 1510570), (115, 1208456), (184, 755285), (230, 604228), (460, 302114), (920, 151057)]