28018690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 59163264

約数和(自身を除く): 31144574

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 211, 245, 271, 422, 490, 542, 1055, 1355, 1477, 1897, 2110, 2710, 2954, 3794, 7385, 9485, 10339, 13279, 14770, 18970, 20678, 26558, 51695, 57181, 66395, 103390, 114362, 132790, 285905, 400267, 571810, 800534, 2001335, 2801869, 4002670, 5603738, 14009345, 28018690]

約数ペア:

[(1, 28018690), (2, 14009345), (5, 5603738), (7, 4002670), (10, 2801869), (14, 2001335), (35, 800534), (49, 571810), (70, 400267), (98, 285905), (211, 132790), (245, 114362), (271, 103390), (422, 66395), (490, 57181), (542, 51695), (1055, 26558), (1355, 20678), (1477, 18970), (1897, 14770), (2110, 13279), (2710, 10339), (2954, 9485), (3794, 7385)]