81886784

素因数分解:

$2^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3889}}^1$

素因数の和:3955

約数の個数: 56

約数和(自身を含む): 189707520

約数和(自身を除く): 107820736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 188, 224, 329, 376, 448, 658, 752, 1316, 1504, 2632, 3008, 3889, 5264, 7778, 10528, 15556, 21056, 27223, 31112, 54446, 62224, 108892, 124448, 182783, 217784, 248896, 365566, 435568, 731132, 871136, 1279481, 1462264, 1742272, 2558962, 2924528, 5117924, 5849056, 10235848, 11698112, 20471696, 40943392, 81886784]

約数ペア:

[(1, 81886784), (2, 40943392), (4, 20471696), (7, 11698112), (8, 10235848), (14, 5849056), (16, 5117924), (28, 2924528), (32, 2558962), (47, 1742272), (56, 1462264), (64, 1279481), (94, 871136), (112, 731132), (188, 435568), (224, 365566), (329, 248896), (376, 217784), (448, 182783), (658, 124448), (752, 108892), (1316, 62224), (1504, 54446), (2632, 31112), (3008, 27223), (3889, 21056), (5264, 15556), (7778, 10528)]