28639030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 60468336

約数和(自身を除く): 31829306

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 211, 245, 277, 422, 490, 554, 1055, 1385, 1477, 1939, 2110, 2770, 2954, 3878, 7385, 9695, 10339, 13573, 14770, 19390, 20678, 27146, 51695, 58447, 67865, 103390, 116894, 135730, 292235, 409129, 584470, 818258, 2045645, 2863903, 4091290, 5727806, 14319515, 28639030]

約数ペア:

[(1, 28639030), (2, 14319515), (5, 5727806), (7, 4091290), (10, 2863903), (14, 2045645), (35, 818258), (49, 584470), (70, 409129), (98, 292235), (211, 135730), (245, 116894), (277, 103390), (422, 67865), (490, 58447), (554, 51695), (1055, 27146), (1385, 20678), (1477, 19390), (1939, 14770), (2110, 13573), (2770, 10339), (2954, 9695), (3878, 7385)]