139284880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248723}}^1$

素因数の和:248743

約数の個数: 40

約数和(自身を含む): 370101312

約数和(自身を除く): 230816432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248723, 497446, 994892, 1243615, 1741061, 1989784, 2487230, 3482122, 3979568, 4974460, 6964244, 8705305, 9948920, 13928488, 17410610, 19897840, 27856976, 34821220, 69642440, 139284880]

約数ペア:

[(1, 139284880), (2, 69642440), (4, 34821220), (5, 27856976), (7, 19897840), (8, 17410610), (10, 13928488), (14, 9948920), (16, 8705305), (20, 6964244), (28, 4974460), (35, 3979568), (40, 3482122), (56, 2487230), (70, 1989784), (80, 1741061), (112, 1243615), (140, 994892), (280, 497446), (560, 248723)]