28267820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10627}}^1$

素因数の和:10662

約数の個数: 48

約数和(自身を含む): 71420160

約数和(自身を除く): 43152340

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 10627, 21254, 42508, 53135, 74389, 106270, 148778, 201913, 212540, 297556, 371945, 403826, 743890, 807652, 1009565, 1413391, 1487780, 2019130, 2826782, 4038260, 5653564, 7066955, 14133910, 28267820]

約数ペア:

[(1, 28267820), (2, 14133910), (4, 7066955), (5, 5653564), (7, 4038260), (10, 2826782), (14, 2019130), (19, 1487780), (20, 1413391), (28, 1009565), (35, 807652), (38, 743890), (70, 403826), (76, 371945), (95, 297556), (133, 212540), (140, 201913), (190, 148778), (266, 106270), (380, 74389), (532, 53135), (665, 42508), (1330, 21254), (2660, 10627)]